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Samarskite Group

A group of related mineral species

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Photos of Samarskite Group (340)Recorded Ages and Analyses Discuss Samarskite Group

Samarskite Group Gallery Search Photos of Samarskite Group

Edit Samarskite Group Add Synonym Edit CIF structures Clear Cache

Samarskite-(Y), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA

Samarskite-(Y)

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA

Yttrotantalite-(Y)

Ytterby, Resarö, Vaxholm, Stockholm County, Sweden

Yttrotantalite-(Y), etc.

Pyörönmaa pegmatite, Valkeakoski, Pirkanmaa, Finland

Samarskite-(Y), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA

Samarskite-(Y)

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA

Yttrotantalite-(Y)

Ytterby, Resarö, Vaxholm, Stockholm County, Sweden

Yttrotantalite-(Y), etc.

Pyörönmaa pegmatite, Valkeakoski, Pirkanmaa, Finland

Samarskite-(Y), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA

Samarskite-(Y)

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA

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About Samarskite GroupHide

Formula:

A³⁺B³⁺C⁵⁺₂O₈

A = Yb, Y, REE (Ln), U, Th, Ca
B = Fe³⁺, Mn²⁺
C = Nb, Ta, Ti. Nb> Ta and Ti

Member of:

Columbite Supergroup

Samarskite group minerals are ordered A³⁺C⁵⁺O₄ minerals. The difference between the species of the group lies in the occupancy of the A-site.

Important note: Britvin et al. (2019) show, that iron is an essential constituent of samarskite-(Y) - a feature most likely concerning other group members, and thus interpolated from samarskite-(Y) to the general formula of the group.

Yttrotantalite-(Y) is (also) a member of the samarskite group according to Ercit (2005).

Unique IdentifiersHide

Mindat ID:

39540

Long-form identifier:

mindat:1:1:39540:9

Chemistry of Samarskite GroupHide

Mindat Formula:

A³⁺B³⁺C⁵⁺₂O₈

A = Yb, Y, REE (Ln), U, Th, Ca
B = Fe³⁺, Mn²⁺
C = Nb, Ta, Ti. Nb> Ta and Ti

Age distributionHide

Recorded ages:

Late/Upper Devonian : 380 Ma to 361 Ma - based on 5 recorded ages.

Sample ages:

Sample ID	Recorded age	Geologic Time	Dating method
1	380 to 361 Ma	Late/Upper Devonian	U-Pb
2	380 to 361 Ma	Late/Upper Devonian	U-Pb
3	380 to 361 Ma	Late/Upper Devonian	U-Pb
4	380 to 361 Ma	Late/Upper Devonian	U-Pb

Sample references:

ID	Locality	Reference
1	Itambé, Bahia, Brazil	Gastil, R. G. (1960) The distribution of mineral dates in time and space. American Journal of Science, 258 (1) 1-35 doi:10.2475/ajs.258.1.1
2	" "	Gastil, R. G. (1960) The distribution of mineral dates in time and space. American Journal of Science, 258 (1) 1-35 doi:10.2475/ajs.258.1.1
3	" "	Gastil, R. G. (1960) The distribution of mineral dates in time and space. American Journal of Science, 258 (1) 1-35 doi:10.2475/ajs.258.1.1
4	" "	Gastil, R. G. (1960) The distribution of mineral dates in time and space. American Journal of Science, 258 (1) 1-35 doi:10.2475/ajs.258.1.1

Chemical AnalysisHide

Empirical formulas:

Sample ID	Empirical Formula
1	(Y0.66,Fe3+0.52,Ti0.22,Ca0.19,U0.13,Sc0.08,Mn0.05,Yb0.05,Th0.03)1.95 (Nb1.16,Ta0.76,W0.05,Ti0.04)2.00 O8

Sample references:

ID	Locality	Reference	Notes
1	Brattekleiv Feldspar Quarry, Lauvland, Evje og Hornnes, Agder, Norway	Harries, Dennis (2020) Analyzed by SEM_EDS.	Black anhedral masses in feldspar, reddish-brown internal reflections, associated with columbite and biotite. SEM-EDS of small fragment (30 keV, semiquantitative, standardless, O by stoichiometry).

Other Language Names for Samarskite GroupHide

Simplified Chinese:铌钇矿

Relationship of Samarskite Group to other SpeciesHide

Member of:

Columbite Supergroup

Other Members of Columbite Supergroup:

Columbite Group
Dmitryvarlamovite	Ti₂(Fe³⁺Nb)O₈	Orth. 222 : P2₁2₁2
Huangshanite	Fe³⁺TaO₄	Mon. 2/m : P2/b
Ixiolite Group	M1O₂
Wodginite Group	(Fe²⁺\|Mn²⁺\|Li)(Ta\|Sn\|Ti)(Ta\|Nb)₂O₈
Wolframite Group	Note: "Wolframite" usually has a chemical composition covering the range between Hübnerite and ...
Yttrocolumbite-(Y)	Y(U⁴⁺,Fe²⁺)Nb₂O₈

Samarskite Group Members:

Calciosamarskite	(Ca,U⁴⁺)Fe³⁺(Nb,Ta,Ti)₂O₈	Orth. mmm(2/m2/m2/m)
Ishikawaite	U⁴⁺Fe²⁺Nb₂O₈	Mon.
Samarskite-(Y)	YFe³⁺Nb₂O₈	Mon. 2/m : P2/b
Samarskite-(Yb)	YbFe³⁺(Nb,Ta)₂O₈	Mon. 2/m : P2/b
Shakhdaraite-(Y)	ScYNb₂O₈	Mon. 2/m : P2/b
Yttrotantalite-(Y)	(Y,U,Fe²⁺)(Ta,Nb)(O,OH)₄	Orth.

Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.

Minerals chemically related to group:

'Ishikawaite'

U⁴⁺Fe²⁺Nb₂O₈

Other InformationHide

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Samarskite GroupHide

mindat.org URL:

https://www.mindat.org/min-39540.html
Please feel free to link to this page.

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References for Samarskite GroupHide

Reference List:

Hanson, S. L., Simmons, W. B., Falster, A. U., Foord, E. E., Lichte, F. E. (1999) Proposed nomenclature for samarskite-group minerals: new data on ishikawaite and calciosamarskite. Mineralogical Magazine, 63 (1) 27-36 doi:10.1180/002646199548286

Jambor, J.L., Roberts, A.C. (1999) New mineral names. American Mineralogist: 84: 1464-1468.p.1467

Ercit, T. S. (2005) Identification and alteration trends of granitic–pegmatite-hosted (Y,REE,U,Th)–(Nb,Ta,Ti) oxide minerals: a statistical approach. The Canadian Mineralogist, 43 (4). 1291-1303 doi:10.2113/gscanmin.43.4.1291

Tomašić, Nenad, Gajović, Andreja, Bermanec, Vladimir, Linarić, Maša, Rajić Su, Dangsheng Š koda (2010) Preservation of the samarskite structure in a metamict ABO4 mineral: a key to crystal structure identification. European Journal of Mineralogy, 22 (3) 435-442 doi:10.1127/0935-1221/2010/0022-2032

Kjellman, Johan (2017) ABC2O8 – a new look on the crystal chemistry and classification of samarskite group minerals, in PEG2017. 8th International Symposium on Granitic Pegmatites. NGF Abstracts and Proceedings of the Geological Society of Norway, 2017 (2) 64-67

Britvin, Sergey N., Pekov, Igor V., Krzhizhanovskaya, Maria G., Agakhanov, Atali A., Ternes, Bernd, Schüller, Willi, Chukanov, Nikita V. (2019) Redefinition and crystal chemistry of samarskite-(Y), YFe³⁺Nb₂O₈: cation-ordered niobate structurally related to layered double tungstates. Physics and Chemistry of Minerals, 46 (7) 727-741 doi:10.1007/s00269-019-01034-0

Chukanov, Nikita V.; Pasero, Marco; Aksenov, Sergey M.; Britvin, Sergey N.; Zubkova, Natalia V.; Yike, Li; Witzke, Thomas (2023) Columbite supergroup of minerals: nomenclature and classification. Mineralogical Magazine, 87 (1). p.18-33. doi:10.1180/mgm.2022.105

Localities for Samarskite GroupHide

Showing 567 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the

symbol to view information about a locality. The

symbol next to localities in the list can be used to jump to that position on the map.

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Locality ListHide

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality.

- Good crystals or important locality for species.

- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.


Afghanistan
ⓘ Kunar	[Ishikawaite] Hanson et al. (1999)

Australia
Northern Territory Central Desert Region Harts Range (Harts Ranges; Hartz Range; Hartz Ranges) Ambalindum Station Coggan Bore ⓘ Lone Pine Mica Mine (Lone Pine prospect; Cone Hill)	[Samarskite-(Y)] Museum Victoria Mineralogy Collection
Spriggs Creek Bore (Spriggs Bore) ⓘ Walter Smith Prospect	[Samarskite-(Y)] Placer Prospecting (Aust.) +1 other reference
Mt Riddock Station ⓘ Butcher Bird Mine	[Samarskite-(Y)] Thompson (ed.)
ⓘ Painted Canyon Mine	[Samarskite-(Y)] Thompson (ed)
Queensland Cloncurry Shire Rosebud Station Mary Kathleen district ⓘ Mary Kathleen Mine	[Yttrotantalite-(Y)] Kwak et al. (1987)
South Australia Pastoral Unincorporated Area Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station) Mount Painter area ⓘ Mount Painter No. 2 workings	[Ishikawaite, Samarskite-(Y)] Brugger et al. (2011)
Bimbowrie Conservation Park ⓘ Alconie Hill	[Samarskite-(Y)] Lottermoser et al. (1997)
ⓘ Domenic Mine	[Samarskite-(Y)] Lottermoser et al. (1997)
Old Boolcoomata Station ⓘ Brady Beryl (Brady Mine)	[Samarskite-(Y)] Lottermoser et al. (1997)
White Rock Feldspar Mine ⓘ White Rock No. 2 pegmatite	[Samarskite-(Y)] Lottermoser et al. (1997) +1 other reference
Western Australia East Pilbara Shire ⓘ Shaw River District	[Yttrotantalite-(Y)] Sue Koepke collection
ⓘ Cooglegong pegmatite field	[Yttrotantalite-(Y)] Jacobson et al. (2007) +2 other references
ⓘ Trigg Hill pegmatite group	[Calciosamarskite, Yttrotantalite-(Y)] Jacobson et al. (2007) +2 other references
Upper Gascoyne Shire Yinnietharra ⓘ Wabli Creek pegmatites	[Samarskite-(Y)] Jacobson et al. (2007) +2 other references

Austria
Salzburg Zell am See District Mittersill Mittersill Scheelite deposit ⓘ Western ore field	[Samarskite-(Y)] Strasser (1989)
Upper Austria Freistadt District Pregarten ⓘ Meitschenhof ?	[Samarskite-(Y)] Arthofer (2005)
Rohrbach District Aigen-Schlägl ⓘ Mitterreit quarry	[Samarskite-(Y)] Pfaffl (1976) +1 other reference
Urfahr-Umgebung District Steyregg Pulgarn ⓘ Floriani quarry (Haider quarry)	[Samarskite-(Y)] Haider (1997)

Brazil
Minas Gerais Conceição do Mato Dentro São José de Brejaúba ⓘ Posse mine	[Samarskite-(Y)] Guimar˜aes (1941)
ⓘ Divinésia	[Samarskite-(Y)] Butler (1958)
ⓘ Rio Pomba	[Samarskite-(Y)] Polycrase specimen in the British ...

Bulgaria
Pazardzhik Province Velingrad Municipality ⓘ Grantcharitsa tungsten deposit	[Ishikawaite] Tarassov et al. (2022)
Plovdiv Province Laki Municipality Laki Djurkovo Complex ⓘ Djurkovo mine	[Ishikawaite] Georgieva et al. (2023)

Canada
British Columbia Revelstoke Mining Division Revelstoke ⓘ Mount Begbie	[Ishikawaite] Dixon et al. (2014)
Manitoba Lac-du-Bonnet area Greer Lake ⓘ Annie Claim #3 pegmatite	[Yttrotantalite-(Y)] Masau et al. (2000)
Shatford Lake ⓘ Shatford Lake pegmatites	[Yttrotantalite-(Y)] Paul (1984)
Northwest Territories North Slave Region Blachford Lake alkaline complex Thor Lake syenite complex ⓘ Nechalacho deposit	[Samarskite-(Y)] MÖLLER (2016)
Nova Scotia Cumberland Co. ⓘ Wentworth plutonic complex	[Samarskite-(Y)] Papoutsa et al. (2013)
Ontario Hastings County Hastings Highlands Municipality Monteagle Township ⓘ Woodcox Mine	[Calciosamarskite, Samarskite-(Y)] Ercit (1994)
Nipissing District Butt Township ⓘ River's occurrence (Yankee Dam)	[Samarskite-(Y)] MDI Number: MDI31E11NE00070
ⓘ Sheehan beryl occurrence	[Samarskite-(Y)] Sabina (2007) +1 other reference
Dickens Township ⓘ Davis Mine	[Samarskite-(Y)] Ercit (1994)
Spectacle Lake (Wolfsden Lake) ⓘ Spectacle Lake mine (Lake mine; Lake quarry)	[Samarskite-(Y)] Sabina (2007) +1 other reference
Mattawan Township ⓘ Purdy Mine	[Yttrotantalite-(Y)] www.ontariominerals.com/onmins-xyz.htm.
Parry Sound District Chapman Township ⓘ Blue Star mine	[Samarskite-(Y)] Ercit (1994)
ⓘ Conger Township	[Samarskite-(Y)] Seaman (1976)
ⓘ Brignall Mine (McQuire and Robinson)	[Calciosamarskite, Samarskite-(Y)] Ercit (1994)
ⓘ McQuire Mine	[Calciosamarskite] Ellsworth (1928) +2 other references
Renfrew County Brudenell-Lyndoch-and-Raglan Lyndoch Township Quadeville area ⓘ Beryl Pit ?	[Samarskite-(Y)] ontariominerals.com
ⓘ Rose Quartz Pit	[Samarskite-(Y)] Pit owers (pers. comm.) +1 other reference
Head-Clara-and-Maria Head Township ⓘ Carey Mine	[Samarskite-(Y)] Sabina (2007) +1 other reference
Québec Lanaudière Matawinie RCM Saint-Michel-des-Saints ⓘ Maisonneuve mine (Maison Neuve mine)	[Samarskite-(Y)] Palache et al. (1944) +2 other references
Nord-du-Québec Nunavik ⓘ Eldor Carbonatite Complex (Eldor carbonatite)	[Samarskite-(Y)] Mitchell et al. (2017)
Ashram Zone ⓘ Ashram REE deposit	[Samarskite-(Y)] Mitchell et al. (2017)
Outaouais Les Collines-de-l'Outaouais RCM Val-des-Monts Saint-Pierre-de-Wakefield Lake Saint-Pierre ⓘ Leduc Mine	[Samarskite-(Y)] Hilderley et al. (2006)

China
Guangdong Guangzhou Conghua Co. ⓘ Gaowang Mine	[Samarskite-(Y)] Smith et al. (2005)
Jiangmen Taishan Co. ⓘ Taishan intrusion	[Samarskite-(Y)] Zhang Peishan et al. (1996)
Hunan Yongzhou Dao Co. ⓘ Weijia W deposit	[Samarskite-(Y)] Huang et al. (2022)
Inner Mongolia Baotou City Bayan Obo mining district ⓘ Bayan Obo deposit	[Samarskite-(Y)] Yang et al. (2024)
Jiangxi Ganzhou Quannan Co. ⓘ Dajishan Mine (Tachishan Mine)	[Samarskite-(Y)] Xudong Wang et al. (2013)
Liaoning ⓘ Liaodong Peninsula	[Samarskite-(Y)] Pavel M. Kartashov (n.d.)
Shaanxi Ankang Ziyang County ⓘ Haoping Nb–REE-mineralized trachyte	[Samarskite-(Y)] Shi et al. (2026)
Sichuan Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture) Yajiang County Kangding pegmatite field ⓘ Jiajika Mine	[Samarskite-(Y)] Li +4 other references
Liangshan Yi Mianning County ⓘ Maoniuping Mine	[Samarskite-(Y)] Orris et al. (2002)
Panzhihua Miyi County Haita town ⓘ Miyi REE deposit	[Ishikawaite, Samarskite-(Y)] Zhang Peishan et al. (1996)
Xinjiang Ili Kazakh Autonomous Prefecture Altay Prefecture (Aletai Prefecture) Fuyun Co. (Koktokay Co.) Ayoubulake pegmatite field ⓘ Altay pegmatite no. 202	[Ishikawaite] Rubo Zhang and Fengming Han (1983)
ⓘ Koktokay pegmatite field (Keketuohai pegmatite field)	[Ishikawaite, Samarskite-(Y)] www.smartminerals.com (2004)
Yunnan Baoshan Tengchong County Tengchong Sn belt ⓘ Baihuanao intrusion	[Samarskite-(Y)] Ganfu Shen (2002)

Czech Republic
South Bohemian Region Písek District Kovářov Vepice ⓘ Vepice quarry	[Calciosamarskite, Samarskite-(Y)] Sejkora et al. (2020)
ⓘ U obrázku quarry (Obrázek I quarry)	[Samarskite-(Y)] Škoda et al. (2011)
South Moravian Region Brno-Country District Drahonín ⓘ Drahonín uranium mine	[Calciosamarskite, Ishikawaite, Samarskite-(Y)] Škoda et al. (2004)
Vysočina Region Třebíč District Stařeč ⓘ Kracovice	[Calciosamarskite, Samarskite-(Y)] Škoda +2 other references

Egypt
Red Sea Governorate ⓘ Gabal El-Bakriya Pegmatites	[Samarskite-(Y)] Fathy et al. (2025)
ⓘ Gabal Qash Amir muscovite granite	[Samarskite-(Y)] Emad et al. (2022)
ⓘ Gebel Ras Baroud	[Samarskite-(Y)] Raslan et al. (2010)
ⓘ Kadabora-Abu Dob alkali-feldspar granite	[Samarskite-(Y)] Abdalla (2006)
ⓘ Khour Abalea	[Samarskite-(Y)] Abd El Rahman et al. (2022)
ⓘ Um Naggat	[Samarskite-(Y)] Gaafar et al. (2022)
Wadi Abu Rasheid ⓘ Emerald mines	[Ishikawaite] Yehia H. Dawood (2011) +1 other reference
Wadi Nugrus ⓘ Emerald mines	[Ishikawaite] Abdel Gawad et al. (2022)
Wadi Sikait ⓘ Emerald mines (Sikait emerald deposit)	[Ishikawaite] Kamar et al. (2022, August)

Finland
Kanta-Häme Tammela ⓘ Laurinmäki	[Samarskite-(Y)] Nordenskiöld (1863)
ⓘ Sukula Pegmatites	[Samarskite-(Y)] Wilke (1976)
Pirkanmaa Valkeakoski ⓘ Pyörönmaa pegmatite	[Yttrotantalite-(Y)] Pavel M. Kartashov analytical data of ...
Southwest Finland Kimitoön (Kemiönsaari) Kimitoön Island ⓘ ~~Rosendal pegmatite~~	[Samarskite-(Y)] Nordenskiöld (1863)
Somero ⓘ Penikoja (Kaitasuo)	[Samarskite-(Y)] Wilke (1976)

France
Nouvelle-Aquitaine Pyrénées-Atlantiques Oloron-Sainte-Marie Aramits Ance ⓘ Col d'Etche	[Samarskite-(Y)] MONCHOUX P. et al. (2006)
ⓘ Col d'Urdach	[Samarskite-(Y)] MONCHOUX P. et al. (2006)
Occitanie Hautes-Pyrénées Bagnères-de-Bigorre Avezac-Prat-Lahitte ⓘ Espéchère	[Ishikawaite] MONCHOUX P. et al. (2006)

Germany
Bavaria Lower Bavaria Passau District Tittling Tittling Hötzendorf ⓘ Granodiorite quarries (incl. Kusser Quarry)	[Samarskite-(Y)] Weiß (1990)
ⓘ Kerber Quarry	[Samarskite-(Y)] Neschen (n.d.)
Upper Palatinate Neustadt an der Waldnaab District Waidhaus Hagendorf ⓘ Hagendorf South Pegmatite	[Samarskite-(Y)] web.archive.org (2001)
Rhineland-Palatinate Mayen-Koblenz Mendig Mendig ⓘ In den Dellen quarries	[Samarskite-(Y)] Blaß et al. (2001)
ⓘ Thelenberg	[Samarskite-(Y)] Blaß et al. (2001)
Wingertsberg ⓘ Pumice quarries	[Samarskite-(Y)] Blaß et al. (2001)
Pellenz Kruft ⓘ Krufter Ofen	[Samarskite-(Y)] Blaß et al. (2001)
Saxony Görlitz District Thiemendorf ⓘ A4 Highway tunnel	[Yttrotantalite-(Y)] Witzke et al. (2013)

Greenland
Northeast Greenland National Park ⓘ Kap Simpson Complex	[Samarskite-(Y)] - (n.d.) +1 other reference

Guyana
Barima-Waini Region ⓘ Kaituma	[Samarskite-(Y)] USGS Bulletin 2062

Hungary
Borsod-Abaúj-Zemplén County Miskolc District Miskolc ⓘ Lillafüred	[Samarskite-(Y)] Balassa et al. (2026)

India
Andhra Pradesh Nellore District ⓘ Kodanda Rama mine	[Samarskite-(Y)] C. Karunakaran and K. Neelakantam: ...
Tamil Nadu ⓘ Chennai District	[Samarskite-(Y)] Butler (1958)
Salem District Salem ⓘ Kullampatti	[Samarskite-(Y)] Raju et al. (2003)
Uttar Pradesh Mirzapur Division Sonbhadra District ⓘ Jaurahi pegmatite	[Samarskite-(Y)] URAM 2014 IAEA p52 +1 other reference
ⓘ Jhirgadandi Pluton	[Samarskite-(Y)] Bhattacharya et al. (2007)
West Bengal Purulia District ⓘ Nawahatu	[Samarskite-(Y)] Baidya et al. (2) +1 other reference

Indian Plate
ⓘ Bastar Craton	[Samarskite-(Y)] Singh et al. (1991)

Italy
Lombardy Varese Province ⓘ Cuasso al Monte ?	[Samarskite-(Y)] "Silvano Turati' Collection"
Piedmont Verbano-Cusio-Ossola Province Toceno Val di Crana ⓘ Val di Crana pegmatites	[Samarskite-(Y)] Rivista Mineralogica Italiana (1)
ⓘ Bosco pegmatite	[Samarskite-(Y)] Guastoni et al. (2019)
Trontano ⓘ Rio Graia	[Samarskite-(Y)] Piccoli et al. (2007)
Trentino-Alto Adige/Südtirol Trento Province Borgo Chiese Condino ⓘ Dos Sorà prospect ?	[Samarskite-(Y)] Daniele Ravagnani - I giacimenti ...
ⓘ Rio Giulis uranium prospect	[Samarskite-(Y)] Daniele Ravagnani - Giacimenti ...

Japan
Fukushima Prefecture Date District Kawamata Iizaka Village (Iisaka) ⓘ Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama)	[Yttrotantalite-(Y)] King (n.d.)
ⓘ Ishikawa District	[Ishikawaite, Samarskite-(Y)] Min Mag 63 (1999)
Ishikawa town (Ishikawa-machi) Nekonaki ⓘ Ikkoyashiki pegmatite	[Samarskite-(Y)] Koji Koseki & Hanzo Gohara (1956)
ⓘ Izutsuyama pegmatite	[Samarskite-(Y)] Koji Koseki & Hanzo Gohara (1956)
ⓘ Kozoyama pegmatite	[Samarskite-(Y)] Koji Koseki & Hanzo Gohara (1956)
ⓘ Ōhashi River	[Ishikawaite, Samarskite-(Y)] Kimura (1922)
ⓘ Shiozawa	[Ishikawaite] Alfredo Petrov collection (ex- Bill Pinch collection)
ⓘ Wagu	[Ishikawaite, Samarskite-(Y)] Petrov (n.d.)
ⓘ Kannonyama pegmatite (Kannonyama mine)	[Ishikawaite, Samarskite-(Y)] Kimura (1922)
Sukagawa City Mt Uzumine (Utsumine) ⓘ Uzumine mine (Udumine mine; Uzumine pegmatite)	[Samarskite-(Y)] - (n.d.)
ⓘ Mujinamori	[Yttrotantalite-(Y)] University of Tokyo collection
Gifu Prefecture Nakatsugawa City Fukuoka ⓘ Takayama	[Samarskite-(Y)] Sadanaga et al. (1974)
ⓘ Hirukawa	[Samarskite-(Y)]
ⓘ Naegi district (Naegi pegmatite district)	[Samarskite-(Y)] John Rakovan (2015)
Ibaraki Prefecture Makabe District Makabe-machi ⓘ Yamanoo	[Samarskite-(Y)] Harada (1954)
Kochi Prefecture Tosashimizu City ⓘ Cape Ashizuri (Ashizurimisaki)	[Samarskite-(Y)] Nakashima et al. (1998)
Shiga Prefecture Otsu City ⓘ Tanakami-yama (Tanokami-yama)	[Samarskite-(Y), Yttrotantalite-(Y)] Nakatsugawa Mineral Museum (Gifu Prefecture, Japan)
ⓘ Suishodani	[Yttrotantalite-(Y)] Yamada (2004)

Kazakhstan
East Kazakhstan Region Ulan District ⓘ Asubulak ore field	[Samarskite-(Y)] Oitseva et al. (2017)

Madagascar
Alaotra-Mangoro Amparafaravola District Andilana Nord Commune ⓘ Andilana pegmatite	[Samarskite-(Y)] Behier (1963)
Analamanga Anjozorobe District Beronono Commune ⓘ Befanamo pegmatite	[Samarskite-(Y)] Behier (1960)
Ankazobe District Ambolotarakely ⓘ Maharidaza pegmatite	[Samarskite-(Y)] Behier (1960)
ⓘ Miakanjovato pegmatite	[Samarskite-(Y)] Pezzotta (1999)
Andranomiady ⓘ Miarinkofeno pegmatite	[Samarskite-(Y)] Behier (1960)
Tsaramasoandro ⓘ Marijao pegmatite	[Samarskite-(Y)] Behier (1960)
Atsinanana Brickaville District Lohariandava ⓘ Mboro pegmatite	[Samarskite-(Y)] Giraud (1956)
Betsiboka Maevatanana District ⓘ Morafeno Commune	[Samarskite-(Y)] Michel Arliguie collection & photo (Photo ID: 1009475, old sample)
Tsaratanàna District Bekapaika Commune ⓘ Ambatoharanana Ambony pegmatite (South)	[Samarskite-(Y)] Behier (1960)
ⓘ Ambohibola pegmatites	[Samarskite-(Y)] Behier (1960)
ⓘ Ampangabe-Ambohibola pegmatite	[Samarskite-(Y)] Besaire (1966)
ⓘ Analila pegmatite	[Samarskite-(Y)] Behier (1960)
ⓘ Antsakoa I pegmatite	[Samarskite-(Y)] Besaire (1966)
ⓘ Berere Pegmatite Field	[Samarskite-(Y)] Michel Arliguie collection & photo (photo id 898827)
Manakana Commune ⓘ Ambatoharanana pegmatite (Androfia)	[Samarskite-(Y)] Behier (1958) +1 other reference
ⓘ Manakana pegmatite	[Samarskite-(Y)] Behier (1960)
Diana Ambanja District Antsirabe ⓘ Ampasibitika	[Samarskite-(Y)] Ganzeev et al. (2003)
Itasy Soavinandriana District Mahavelona ⓘ Ampasipoana pegmatite	[Samarskite-(Y)] Behier (1963)
Sava Vohémar District Maromokotra Loky Commune ⓘ Befarafara	[Samarskite-(Y)] Behier (1963)
Sofia Mampikony District ⓘ Betanimena pegmatite	[Samarskite-(Y)] Behier (1963)
Vakinankaratra Antsirabe II District Ambohitsimanova ⓘ Manendrika	[Samarskite-(Y)] Lacroix (1922)
Betafo District ⓘ Ambohimasina	[Samarskite-(Y)] Behier (1960)
ⓘ Lohavalala pegmatite	[Samarskite-(Y)] Behier (1960)
ⓘ Sahamandrevo pegmatite	[Samarskite-(Y)] Lacroix (1922)
ⓘ Fefena pegmatite	[Samarskite-(Y)] Ungemach (1916) +1 other reference
Mahaiza ⓘ Tsaramanga pegmatite	[Samarskite-(Y)] Collection of the British Museum of Natural History #1915-36 (1975)
Tritriva ⓘ Samiresy	[Samarskite-(Y)] Knut Edvard Larsen collection # MM-2248 (visually identification)
Faratsiho Miandrarivo ⓘ Ampangabé pegmatite	[Samarskite-(Y)] Lacroix (1912) +1 other reference
Mandoto ⓘ Anjoma Ramartina	[Samarskite-(Y)] Joan Rosell-Riba (2026)
Betsohana ⓘ Ambatofotsikely pegmatite	[Samarskite-(Y)] Behier (1960)

Mozambique
Nampula Province Ribaué District ⓘ Boa Esperança Mine	[Samarskite-(Y)] Lima de Fari (1956) +1 other reference
Zambezia Province ⓘ Alto Ligonha Pegmatite Field	[Samarskite-(Y)] Wilson et al. (2000)
Alto Mólocuè District ⓘ Ehiale-Namovela-Massive-Horta group	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Ehiale Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Horta Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Massive Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Namovela Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
Gilé District Ingela-Murrapane-Namicaia group ⓘ Ingela Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Mocachaia Pegmatite (Macotaia Pegmatite)	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Mtomotiti Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
Muiane-Naipa group ⓘ Muiâne pegmatite (Muiâne mine; Emdal mines)	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Namivu Pegmatite (Namivo Pegmatite)	[Samarskite-(Y)] Wilson et al. (2000)
ⓘ Nampoça Pegmatite	[Samarskite-(Y)] Lima de Faria et al. (1966) +1 other reference
ⓘ Tomeia Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)
Mocuba District Mocuba ⓘ Vila Maior pegmatite	[Samarskite-(Y)] Moiana (2010)
ⓘ Mugeba Pegmatite	[Samarskite-(Y)] Wilson et al. (2000)

Norway
Agder ⓘ Arendal	[Samarskite-(Y)] Brøgger (1906)
Stokken Helle ⓘ Hella 1 Feldspar Quarry	[Yttrotantalite-(Y)] Andersen (1931)
Birkenes Vegusdal Katterås ⓘ Katterås 4 Feldspar Quarry	[Samarskite-(Y)] Frigstad (1968)
Evje og Hornnes Landsverk ⓘ Landsverk 1 Feldspar Quarry (Jokeli)	[Samarskite-(Y)] Frigstad (1968) +1 other reference
Lauvland ⓘ Brattekleiv Feldspar Quarry (Lauvland 04)	[Samarskite-(Y)] Harries (2020)
ⓘ Lauvland 05a Feldspar Quarry	[Samarskite-(Y)] Frigstad (1968)
ⓘ Lauvland 05b Feldspar Quarry (Storemyr 1)	[Samarskite-(Y)] Frigstad (1968)
ⓘ Li	[Yttrotantalite-(Y)] Neumann (1985)
Froland ⓘ Bjellåsen	[Samarskite-(Y)] Nilssen (1970)
Hynnekleiv ⓘ Bjortjønn (Bjortjenn)	[Samarskite-(Y), Yttrotantalite-(Y)] Rosenquist (1949)
ⓘ Lauvrak	[Samarskite-(Y)] Nijland et al. (1998)
Mykland Hinnebu ⓘ Hinebu	[Yttrotantalite-(Y)] Nilssen (1962) +1 other reference
Iveland Ivedal ⓘ Ivedal 2 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935)
Landås ⓘ Beinmyr Feldspar Quarries (Landås 07 Quarries)	[Samarskite-(Y)] Bjørlykke (1935)
ⓘ Landås 02 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935)
ⓘ Landås 03 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935)
Ljosland ⓘ Ljosland 03 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935) +1 other reference
ⓘ Ljosland 11 Feldspar Quarry	[Yttrotantalite-(Y)] Bjørlykke (1935)
Ljoslandsheia ⓘ Ljosland 06 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935)
ⓘ Storsynken (Ljosland 10 Feldspar Quarry) ?	[Yttrotantalite-(Y)] Bjørlykke (1935)
Mølland ⓘ Mølland 03 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935)
Rossås ⓘ Rossås 04 Feldspar Quarry	[Samarskite-(Y), Yttrotantalite-(Y)] Frigstad (1999)
ⓘ Rossås 05 Feldspar Quarry	[Samarskite-(Y)] Frigstad (1968)
ⓘ Solås Pegmatite	[Samarskite-(Y), Yttrotantalite-(Y)] Müller et al. (2012)
Tveit ⓘ Steli Feldspar Quarry (Tveit 03)	[Samarskite-(Y)] Bjørlykke (1935)
ⓘ Tveit 04 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1935)
Lindesnes Vigeland ⓘ Rymteland Feldspar Quarry	[Samarskite-(Y)] Nilssen (1970)
Risør ⓘ Randvik Mine	[Samarskite-(Y)] Brøgger (1906)
ⓘ Setesdal	[Samarskite-(Y)] Rob Lavinsky (Ex. Al Ordway specimen)
Tvedestrand ⓘ Midtbø (Midbø)	[Samarskite-(Y)] Nijland et al. (1998)
Akershus Nesodden ⓘ Spro pegmatite	[Samarskite-(Y)] Raade (1965)
Innlandet Lom Leirdalen ⓘ Tverrbotntind	[Samarskite-(Y)] Wilke (1976)
Nordland Hamarøy ⓘ Drag	[Samarskite-(Y)] Dittrich (1980)
Finnøya ⓘ Håkonhals Quarry	[Samarskite-(Y)] Husdal (2008)
Østfold Halden Idd Aspedammen ⓘ Herrebøkasa	[Samarskite-(Y)] Nilssen (1970)
ⓘ Hvaler	[Samarskite-(Y)] Brøgger (1906) +1 other reference
Moss Dillingøya (Dillingö) ⓘ Borkenestaket	[Yttrotantalite-(Y)] Bjørlykke (1939)
ⓘ Dobbelthullet	[Samarskite-(Y)] Brøgger (1906)
ⓘ Hattvik Feldspar Quarry	[Yttrotantalite-(Y)] Brøgger (1906)
Tolåsen ⓘ Brøggerhullet	[Samarskite-(Y)] Brøgger (1906)
Vannem ⓘ Moss Quarry (Skolt Quarry)	[Samarskite-(Y)] Eldjarn (2008)
Råde ⓘ Berg	[Yttrotantalite-(Y)] Brøgger (1906)
Sarpsborg Skjeberg Setreåsen ⓘ Setre 2 Feldspar Quarry	[Samarskite-(Y)] Bjørlykke (1939)
Våler Ånnerud (Ånnerød) ⓘ Aslakhullet	[Samarskite-(Y)] Bjørlykke (1939)
ⓘ Aslaktaket Quarry	[Samarskite-(Y)] Brøgger (1906)
ⓘ Consul Reinerts Mine	[Samarskite-(Y)] Bjørlykke (1939)
ⓘ Ødegårdssletta	[Samarskite-(Y)] Brøgger (1906)
Telemark Drangedal Tørdal ⓘ ~~Heftetjern pegmatite~~	[Yttrotantalite-(Y)] Raade et al. (2000)
ⓘ Høydalen	[Yttrotantalite-(Y)] Oftedal (1943) +1 other reference
Troms og Finnmark Tjeldsund Tjeldøya ⓘ Forsdalen	[Samarskite-(Y)] Lindahl (1990)
Tromsø Kvaløya ⓘ Middagsskarshøgda	[Samarskite-(Y)] Sverdrup et al. (1967) +1 other reference

Poland
Lower Silesian Voivodeship Dzierżoniów County Piława Górna ⓘ DSS Piława Górna Quarry	[Calciosamarskite, Ishikawaite, Samarskite-(Y)] PIECZKA et al. 2010: Nb-Ta minerals in ...
ⓘ Julianna pegmatite	[Calciosamarskite, Ishikawaite, Samarskite-(Y)] Pieczka et al. (2012) +1 other reference

Romania
Hunedoara County ⓘ Gradistea de Munte deposit	[Ishikawaite, Samarskite-(Y), Samarskite-(Y) var: Titanium-bearing Samarskite-(Y)] HÎRTOPANU et al. (2014)
Suceava County Iacobeni ⓘ Arșița mine	[Samarskite-(Y)] minerals-of-the-carpathians.eu (2008)
Tolovanu ⓘ Tolovanu (Tolovan) Mn deposit	[Samarskite-(Y)] Hîrtopanu (1997) +1 other reference

Russia
Buryatia Bichursky District Mukhorshibir' settlement Zaganskii range Baits Kundui deposit ⓘ Glavnaya vein	[Samarskite-(Y), Samarskite-(Y) var: Titanium-bearing Samarskite-(Y)] Iovchev E.S.
Kizhinginsky District Ermakovskoe Be Deposit Zunshibir' valley ⓘ Opornyi pegmatite	[Samarskite-(Y)] Mironov A.G. and Gofman A.F (1979)
Chelyabinsk Oblast Argayashsky District ⓘ Pit No. 400	[Samarskite-(Y)] Pekov (1998) +1 other reference
Ilmen Mountains ⓘ Pit No. 227	[Ishikawaite] Yu.S. Kobyashev data
ⓘ Pit No. 298	[Ishikawaite, Samarskite-(Y)] Pavel M. Kartashov (n.d.)
ⓘ Pit No. 299	[Samarskite-(Y)] S.Kolesnichenko
ⓘ Pit No. 50 (Blyumovskaya Pit; Blum Pit)	[Samarskite-(Y)] Dana 7:I:761. +2 other references
ⓘ Ilmen Nature Reserve	[Calciosamarskite, Ishikawaite, Samarskite-(Y), Yttrotantalite-(Y)] www.mindat.org (n.d.)
Kaslinsky District Kasli ⓘ Potaniny Gory	[Ishikawaite] webmineral.ru (2021)
Chukotka Autonomous Okrug Chukchi Peninsula (Chukotka Peninsula; Chukotski Peninsula) ⓘ Glubokoe deposit	[Ishikawaite] Alekseev (2025)
ⓘ Severny pluton	[Ishikawaite, Samarskite-(Y)] Alekseev (2025)
Khabarovsk Krai Verkhnebureinsky District ⓘ Badzhalski ore District	[Ishikawaite, Samarskite-(Y)] Alekseev et al. (2018)
Murmansk Oblast Lovozersky District Keivy Mountains Western Keivy Massif ⓘ El'ozero REE occurrence	[Samarskite-(Y)] Zozulya +5 other references
Sverdlovsk Oblast Adui Batholith ⓘ Semininskaya mine	[Samarskite-(Y)] Vital'Evna (2021)
Rezhevsky District ⓘ Lipovskoye pegmatite field	[Ishikawaite] Zakharov et al. (2022)
Tuva Todzhinsky District ⓘ Aryskan REE deposit	[Samarskite-(Y)]
Zabaykalsky Krai Kalarsky District ⓘ Katugin Ta-Nb deposit	[Samarskite-(Y)] Victor V. Sharygin analytycal data (2012)
Olovyanninsky District ⓘ Turga Massif	[Ishikawaite, Samarskite-(Y)] Ivanova et al. (2020)

Saudi Arabia
Ha'il Region ⓘ Silsilah Deposit	[Samarskite-(Y)] Economic Geology (1996)
Tabuk Region Midyan ⓘ Ghurayyah Ta deposit	[Samarskite-(Y)] Lalande (1977) +2 other references
ⓘ Jabal Tawlah	[Samarskite-(Y)] Atencio et al. (2015)

Slovakia
Banská Bystrica Region Lučenec District Pinciná ⓘ Pinciná maar	[Samarskite-(Y)] M. Huraiova et al.
Košice Region Rožňava District ⓘ Gemerská Poloma	[Samarskite-(Y)] Koděra et al. (1986)

South Africa
Limpopo Waterberg District Municipality Thabazimbi Local Municipality Thabazimbi Glenover carbonatite ⓘ Glenover phosphate mine	[Samarskite-(Y)] Cairncross et al. (1995)
Northern Cape Namakwa District Municipality Kamiesberg Local Municipality ⓘ Bok se Puts Farm	[Samarskite-(Y)] Cairncross et al. (1995)
ZF Mgcawu District Municipality Kai !Garib Local Municipality Kakamas ⓘ Baviaanskrantz pegmatite	[Samarskite-(Y)] Cairncross et al. (1995)

South Korea
South Chungcheong Province Hongseong County ⓘ Hongbung-myon	[Yttrotantalite-(Y)] Hideo Tsuda (1969)

Sri Lanka	[Samarskite-(Y)]


Sweden
Dalarna County Borlänge Stora Tuna ⓘ Karlberg ?	[Yttrotantalite-(Y)] Brotzen 1959
Falun ⓘ Broddbo	[Yttrotantalite-(Y)] Gahn et al. (1815) +1 other reference
ⓘ Finnbo (Finbo)	[Yttrotantalite-(Y)] Kjellman (unpublished) +1 other reference
ⓘ Kårarvet	[Yttrotantalite-(Y)] GFF 1
ⓘ Nya Kårarvet	[Yttrotantalite-(Y)] Otter (2023)
ⓘ Manhem ?	[Yttrotantalite-(Y)] Brotzen 1959
ⓘ Myckelmyra ?	[Yttrotantalite-(Y)] Brotzen 1959
Gagnef Mockfjärd ⓘ Rista	[Samarskite-(Y)]
Ludvika Grängesberg ⓘ Grängesberg mining field ?	[Yttrotantalite-(Y)] Brotzen 1959
Säter St. Skedevi ⓘ Österby	[Samarskite-(Y), Yttrotantalite-(Y)]
Jämtland County Bräcke ⓘ Abborrselet	[Samarskite-(Y)] Wilke (1997)
Jönköping County Vetlanda Alseda Slättåkra ⓘ Dikesgård	[Yttrotantalite-(Y)] Wilke (1997)
ⓘ Hulta	[Yttrotantalite-(Y)] Swedish Nat.Musuem
Stockholm County Norrtälje Väddö ⓘ Edeby	[Yttrotantalite-(Y)]
ⓘ Norra Fjäll (Fjällbacka pegmatite)	[Yttrotantalite-(Y)] Wilke (1997)
ⓘ Nothamn	[Samarskite-(Y), Yttrotantalite-(Y)] Dana 7:I:799.
Österåker ⓘ Gruvdalen Mine (Skeppsdal) ?	[Yttrotantalite-(Y)] Nysten (1996)
Vaxholm ⓘ Fredriksberg	[Yttrotantalite-(Y)] The Swedish Museum of Natural History collection # 19170504 (Axel Lindströms mineral collection)
Resarö ⓘ Ytterby	[Yttrotantalite-(Y)] Ekeberg +1 other reference
ⓘ Rönsholmen (Rönnholmen)	[Yttrotantalite-(Y)]
Värmland County Filipstad Persberg ore district Kroppa ⓘ Hornkull silver mines (Hornkullen)	[Yttrotantalite-(Y)]
Västmanland County Köping ⓘ Kolsva	[Samarskite-(Y)] Öhman (2003) +1 other reference
Västra Götaland County Ale Nödinge ⓘ Nol Quarry	[Samarskite-(Y), Yttrotantalite-(Y)] Natural History Museum
Orust ⓘ Timmerhult ?	[Yttrotantalite-(Y)]
Svenljunga ⓘ Ulvås mine	[Samarskite-(Y)]
Vänersborg ⓘ Väne Ryr	[Yttrotantalite-(Y)] The Swedish Museum of Natural History ...
ⓘ Skuleboda ?	[Yttrotantalite-(Y)] Brotzen GFF 1961 +2 other references

Switzerland
Ticino Locarno Centovalli ⓘ Pizzo Ruscada	[Samarskite-(Y)] Girlanda +2 other references
Lugano Carona ⓘ Madonna d'Ongero	[Samarskite-(Y)] Stalder et al. (1998)

Tajikistan
Gorno-Badakhshan Roshtqal'a Shakhdara Range ⓘ Leskhozovskiy granitic pegmatite	[Shakhdaraite-(Y)] Miyawaki et al. (2020) +1 other reference

Thailand
Phuket Province ⓘ Kathu District	[Samarskite-(Y)] amdis.bgl.esdm.go.id (2016)

Uganda
Western Region ⓘ Kigezi District	[Samarskite-(Y)] Gallagher (1967)

Ukraine
Zaporizhia Oblast Pryazovske Raion Eliseevka Eliseevskoe pegmatite field ⓘ Zelenaya Mogila pegmatite	[Samarskite-(Y)] Lazarenko E.K. e.a. Mineralogy of ...
Zhytomyr Oblast Korosten Raion ⓘ Perzhanskoe ore field (Perga Be deposit)	[Samarskite-(Y)] Liventseva (n.d.)

USA
Alaska Prince of Wales-Hyder Census Area Ketchikan Mining District Prince of Wales Island Bokan Mountain ⓘ Carol Ann; Carol Ann No. 1; Carol Ann No. 2; Carol Ann No 3; Dotson Prospects	[Samarskite-(Y)] - (2008)
ⓘ I and L; I and L Nos. 3-5 Prospects	[Samarskite-(Y)] - (2008)
Yukon-Koyukuk Census Area Innoko Mining District ⓘ Colorado Creek Mine	[Samarskite-(Y)] - (2008)
Arizona Mohave County ⓘ Aquarius Mountains	[Samarskite-(Y)] Galbraith (1959)
ⓘ Rare Metals Mine (Waldren Mining Company Mine)	[Samarskite-(Y), Yttrotantalite-(Y)] Meeves et al. (1966)
Cerbat Mountains Kingman Mining District ⓘ Unnamed REE occurrence [2]	[Samarskite-(Y)] Galbraith et al. (1959)
Hualapai Mountains Diamond Joe Mining District Diamond Joe Peak ⓘ Alma pegmatites (Alma claims)	[Samarskite-(Y)] Meeves et al. (1966)
Poachie Range Greenwood Mining District ⓘ Madrill and Leival claims	[Samarskite-(Y)] Robert B. Scarborough (1981)
Pima County ⓘ Dollar Bill claims	[Samarskite-(Y)] MRDS database Dep. ID file #10039667
Sierrita Mountains Pima Mining District ⓘ New Years Eve Mine (Red Carbonate Mine; Amargosa Mine; Amargosa property; Snyder group)	[Samarskite-(Y)] Galbraith et al. (1959) +1 other reference
Yavapai County Black Hills (Black Hill Range) Verde Mining District ⓘ Jerome	[Samarskite-(Y)] Galbraith et al. (1959) +1 other reference
Yuma County ⓘ Fortuna Mining District (La Fortuna Mining District)	[Samarskite-(Y)]
ⓘ Samarskite locality	[Samarskite-(Y)]
California Riverside County Lakeview Mountains Nuevo ⓘ Southern Pacific Silica Quarry (Southern Pacific deposit; Nuevo Mine; Southern Pacific Quarry; S.P. Silica Quarry; S.P. Mine; Nuevo Quarry)	[Samarskite-(Y)] trona +6 other references
ⓘ San Diego County	[Samarskite-(Y)] San Diego Natural History Museum
Jamul ⓘ Lyons Peak	[Samarskite-(Y)] Chris Stefano
Laguna Mountains Los Terrenitos Lawson Peak ⓘ Bird Rock claim (Bird Rock deposit; W. M. Keenan)	[Samarskite-(Y)] Pemberton (1983) +1 other reference
Colorado Boulder County ⓘ Ward Mining District	[Samarskite-(Y)] Eckel et al. (1997)
Chaffee County ⓘ Trout Creek Pass Pegmatite Mining District	[Samarskite-(Y)] Eckel et al. (1997)
Clear Creek County ⓘ Grover Mine (Grover pegmatite; Windsor)	[Samarskite-(Y)] Meeves et al. (1966) +1 other reference
Custer County McKinley Mountain Area ⓘ Hidden Valley Claims	[Calciosamarskite] Eckel et al. (1997)
Douglas County ⓘ Devils Head Pegmatite Mining District	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ California Mine ?	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Unnamed pegmatite	[Samarskite-(Y)] Eckel et al. (1997)
El Paso County ⓘ Pikes Peak	[Samarskite-(Y)] Muntyan et al. (1985)
ⓘ Stove Mountain (Cookstove Mountain)	[Yttrotantalite-(Y)] Rocks & Minerals (Sept. 2001)
Fremont County Cotopaxi Mining District Cotopaxi Cotopaxi Pegmatite area ⓘ Cotopaxi Feldspar Mine (Cotopaxi Feldspar prospect; Henry pegmatite)	[Samarskite-(Y)] Hanley et al. (1950) +1 other reference
Eight Mile Park Pegmatite Mining District ⓘ Eight Mile Park	[Samarskite-(Y)] Eckel et al. (1997)
Goldie Gulch ⓘ Addey pegmatite	[Samarskite-(Y)] Eckel et al. (1997)
Gooseberry Gulch ⓘ Unnamed pegmatite	[Samarskite-(Y)] Eckel et al. (1997)
Kuntz Gulch ⓘ Unnamed pegmatite	[Samarskite-(Y), Yttrotantalite-(Y)] Eckel et al. (1997)
Lookout Mountain Area ⓘ Horsepasture Pegmatites Occurrence	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Jim 1 Mine	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Jim 3 Mine	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Mountain Boy pegmatite	[Samarskite-(Y)] Eckel et al. (1997)
Gunnison County ⓘ Quartz Creek Mining District	[Samarskite-(Y)] Eckel et al. (1997)
Quartz Creek Pegmatite Mining District ⓘ Brown Derby Mine	[Samarskite-(Y)] Rocks & Min.: 24:233-234. +1 other reference
ⓘ Bucky pegmatite (New Anniversary; Willow Creek) ?	[Samarskite-(Y)] USGS Proffesional Paper 265 +1 other reference
ⓘ Pegmatite 417 Occurrence	[Samarskite-(Y)] USGS Proffesional Paper 265
Jefferson County Clear Creek pegmatite Province ⓘ Burroughs Mine (Traut-Rudin-Anderson Pegmatite; Sunrise Peak Mine)	[Samarskite-(Y)] Meeves et al. (1966)
Centennial Cone ⓘ Centennial Cone pegmatite (K. L. Green Ranch) ?	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Little Abner Mine	[Samarskite-(Y)] Meeves et al. (1966)
ⓘ Roscoe Beryl Mine (Roscoe pegmatite)	[Samarskite-(Y), Yttrotantalite-(Y)] Eckel et al. (1997)
ⓘ Wasson Ranch Mine (Rainbow Hills Pegmatite; Wasson Ranch Pegmatite)	[Samarskite-(Y)] Meeves et al. (1966)
Lookout Mountain Branch Ranch ⓘ Unnamed pegmatite	[Samarskite-(Y)] Eckel et al. (1997)
South Platte Pegmatite Mining District ⓘ Butterfield pegmatites	[Samarskite-(Y)] Simmons et al. (1980)
ⓘ Hidden Valley mine	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Little Patsy pegmatite	[Ishikawaite, Samarskite-(Y), Samarskite-(Yb), Yttrotantalite-(Y)] Simmons et al. (2006)
ⓘ Luster No. 1 pegmatite (Lester pegmatite; Oregon No. 3 pegmatite; Ytrrium No. 1 pegmatite)	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Oregon No. 3 Mine (Quartz Knob; White Cap-Raleigh Peak group)	[Samarskite-(Y)] Simmons et al. (1980)
ⓘ White Cap pegmatite	[Samarskite-(Y)] Eckel et al. (1997)
Larimer County Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District) ⓘ New Hope claims	[Samarskite-(Y)] Eckel et al. (1997)
Mesa County Unaweep Mining District Jerome Craig Ranch ⓘ Unnamed Pegmatites	[Samarskite-(Y)] Eckel et al. (1997)
Park County ⓘ Lake George (Badger Flats) Area	[Yttrotantalite-(Y)] Eckel et al. (1997)
Wilkerson Pass Area ⓘ Katydid Mine (Rogers Publishing Company Mine)	[Samarskite-(Y)] Eckel et al. (1997)
Saguache County Blake Mining District (Mirage Mining District; Cotton Creek Mining District) ⓘ Ram Lode and Pam Lode (Ramdohrite lode)	[Samarskite-(Y)] Eckel et al. (1997)
Crestone Mining District (Baca Grant Mining District) ⓘ Judith Claim	[Samarskite-(Y)] Eckel et al. (1997)
Hayden Pass Area ⓘ Blue Bird Claim	[Samarskite-(Y)] Eckel et al. (1997)
ⓘ Mocking Bird Claim (Little Joe)	[Samarskite-(Y)] Eckel et al. (1997)
Teller County ⓘ Black Cloud Mine	[Samarskite-(Y), Yttrotantalite-(Y)] Meeves et al. (1966)
Pikes Peak batholith ⓘ Lake George ring complex	[Yttrotantalite-(Y)] Eckel et al. (1997)
Connecticut Fairfield County Redding Branchville ⓘ Fillow Quarry	[Samarskite-(Y)] Januzzi et al. (1976) +1 other reference
Hartford County Glastonbury ⓘ Knob Hill Quarry	[Samarskite-(Y)] Schooner (1958)
South Glastonbury ⓘ Hollister prospects ?	[Samarskite-(Y)] Rocks & Minerals (1995) +1 other reference
ⓘ Howe Quarry (Howe #1 Quarry; Huspband Quarry)	[Samarskite-(Y)] Moritz (n.d.)
ⓘ Husband Quarries	[Samarskite-(Y)] Moritz (n.d.)
ⓘ Simpson Quarry (Wiarda Quarry)	[Samarskite-(Y)] Weber et al. (1995) +1 other reference
ⓘ Spinelli prospect (Spinelli quarry)	[Ishikawaite, Samarskite-(Y)] Rocks & Min.: 62:413 +5 other references
Middlesex County East Hampton ⓘ Slocum prospect ?	[Samarskite-(Y)] Januzzi et al. (1958)
Middletown White Rock Mining District ⓘ White Rocks Quarry (Consolidated Quarry)	[Samarskite-(Y)] Schooner (1958)
Portland ⓘ Case Quarries	[Samarskite-(Y)] Harold Moritz Collection +1 other reference
Collins Hill ⓘ Hale-Walker prospects	[Samarskite-(Y)] Schooner (1955) +1 other reference
Strickland pegmatite ⓘ Strickland Quarry ?	[Samarskite-(Y)] Ralph Lieser of Pappy’s Beryl Shop +3 other references
ⓘ Pelton's Quarry	[Samarskite-(Y)] Dana 7:I:799.
ⓘ Penfield Quarry (Oak Leaf Quarry)	[Ishikawaite] Hanson et al. (2003) +1 other reference
Georgia DeKalb County ⓘ Stone Mountain-Lithonia Mining District	[Samarskite-(Y)] Cook (1978)
Greene County Union Point ⓘ W. M. Poss property	[Samarskite-(Y)] Cook (1978)
Idaho Boise County ⓘ Boise Basin Mining District	[Samarskite-(Y)] Ream (1995)
ⓘ Fall Creek Placers	[Samarskite-(Y)] Ream (2004)
Garden Valley Mining District ⓘ Bowman prospect	[Samarskite-(Y)] Ream (1995)
ⓘ Mirandeborde prospect	[Samarskite-(Y)] Ream (1995)
ⓘ Vaught - Columbite Mine (Elsie Mica Claim; Peck; Columbite)	[Samarskite-(Y)] Ream (1995)
Idaho City Mining District ⓘ Elk and Moores Creeks	[Samarskite-(Y)] Ream (2004)
ⓘ Idaho City	[Samarskite-(Y)] Ream (1995)
ⓘ Moores Creek Dredging Company Mine	[Samarskite-(Y)] Ream (2004)
Redfish Lake area Unorganized District ⓘ Payette placer	[Samarskite-(Y)] Ream (2004)
Elmore County Rocky Bar Mining District ⓘ Dismal Swamp Placer Mine	[Samarskite-(Y)] USGS Bull 1042K +1 other reference
Maine Oxford County ⓘ ~~West Paris~~	[Samarskite-(Y)] Actual locality was Topsham
Sagadahoc County Topsham Cathance River Nature Preserve ⓘ Swamp #1 Quarry	[Ishikawaite, Samarskite-(Y)] King et al. (1994) +1 other reference
ⓘ Swamp #2 quarry	[Ishikawaite, Samarskite-(Y)] Thompson et al. (1998)
Highland Green ⓘ William Willes #3 Quarry	[Ishikawaite] King et al. (1994) +1 other reference
ⓘ Russell Brothers Quarry	[Ishikawaite] Hanson et al. (1998)
ⓘ Standpipe Hill Quarries	[Ishikawaite] King et al. (1994) +1 other reference
ⓘ Yedlin Locality	[Ishikawaite] King et al. (1994)
ⓘ Undivided Quarry	[Ishikawaite] King et al. (1994) +1 other reference
Massachusetts Hampden County Blandford ⓘ ~~Blandford mica mines~~	[Samarskite-(Y)] "Western Massachusetts Mineral ...
Michigan Marquette County Humboldt Township ⓘ Crockley pegmatite	[Samarskite-(Y)] Travis Olds collection
Montana Big Horn County ⓘ ~~Pryor Mountains~~	[Samarskite-(Yb)] Anita Moore-Nall (personal communication January 2018) +1 other reference
ⓘ ~~East Pryor Mine~~	[Samarskite-(Yb)] Anita Moore-Nall (personal communication January 2018) +1 other reference
Jefferson County Boulder Batholith Boulder Mining District Boulder ⓘ Free Enterprise Mine (Silver Bell)	[Samarskite-(Y)] USGS Bulletin 988-G (1953)
Madison County ⓘ Sappington deposit	[Samarskite-(Y)] Gobla (2012)
Ravalli County Rye Creek Mining District ⓘ Rye Creek pegmatite	[Samarskite-(Y)] Tucker (n.d.) +1 other reference
Nevada Clark County Gold Butte Mining District ⓘ Hilltop mine	[Samarskite-(Y)] Longwell et al. (1965)
Esmeralda County White Mountains ⓘ Lucky Susan No. 1 prospect	[Samarskite-(Y)] NBMG Bull 78 Geology and Mineral ...
Mineral County Buena Vista Mining District ⓘ Lucky Susan Prospect	[Samarskite-(Y)] Ross (1961) +1 other reference
Marietta Mining District ⓘ Pink Lady claims ?	[Samarskite-(Y)] Castor et al. (2004)
New Hampshire Carroll County Hale's Location Middle Moat Mountain locality ⓘ John Oliver locality	[Samarskite-(Y)] Camp (2011)
Wakefield ⓘ Ham and Weeks Mine	[Ishikawaite, Samarskite-(Y)] Nashua Mineral Society Display Catalog +2 other references
Grafton County Bethlehem ⓘ North Sugarloaf Mountain locality ?	[Samarskite-(Y)] Smith (2005)
New Jersey Sussex County Byram Township Cranberry Lake ⓘ BEMCO prospect (Charlotte Mine)	[Samarskite-(Y)] A Quest for New Jersey Minerals (1978)
New Mexico Grant County Gold Hill Mining District ⓘ White Rock Mine	[Samarskite-(Y)] Gillerman (1964)
ⓘ White Signal Mining District	[Samarskite-(Y)] Northrop et al. (1996)
Mora County ⓘ Rincon Range	[Samarskite-(Y)] Northrop et al. (1996)
Rio Arriba County ⓘ Ojo Caliente Mining District	[Samarskite-(Y)] Northrop et al. (1996)
ⓘ Joseph mine	[Samarskite-(Y)] Jahns (1946)
ⓘ Prospect No. 6	[Samarskite-(Y)] Jahns (1946)
ⓘ Prospect No. 8	[Samarskite-(Y)] Jahns (1946)
ⓘ Star deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Petaca Mining District	[Samarskite-(Y), Yttrotantalite-(Y)] Bingler (1968) +3 other references
Alamos area ⓘ Alamos deposit (Parker deposit)	[Samarskite-(Y)] Jahns (1946)
ⓘ Alto deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Carmelita deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Guadalupe deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Hillside deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Little Julia deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Red claim (Peacock claim)	[Samarskite-(Y)] Jahns (1946)
ⓘ White Pegmatite (Lyons deposit)	[Samarskite-(Y), Yttrotantalite-(Y)] Jahns (1946)
Cribbenville area ⓘ Bluebird No. 2 deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Capitan deposit	[Samarskite-(Y), Yttrotantalite-(Y)] Jahns (1946)
ⓘ Cribbenville deposit (New Cribbenville)	[Samarskite-(Y)] Jahns (1946)
ⓘ Fridlund deposit	[Samarskite-(Y)] Jahns (1946) +2 other references
ⓘ Gabaldone deposit (Gavalon)	[Samarskite-(Y)] Jahns (1946)
ⓘ Nambe deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Pino Verde deposit (Luna deposit)	[Samarskite-(Y)] Jahns (1946) +1 other reference
La Jarita-Apache area ⓘ Apache No. 1 Mine (Porter; Blue)	[Samarskite-(Y), Yttrotantalite-(Y)] Bingler (1968)
ⓘ Blue Bird deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Coats Pegmatite (American)	[Samarskite-(Y), Yttrotantalite-(Y)] All minerals were personally collected
ⓘ Conquistidor deposit (Augusta deposit)	[Samarskite-(Y)] Jahns (1946)
ⓘ El Contento deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Keystone-Western deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ La Jarita deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Lonesome deposit	[Samarskite-(Y)] Jahns (1946) +1 other reference
ⓘ North Star deposit (Miller deposit)	[Samarskite-(Y)] Jahns (1946)
ⓘ Queen deposit	[Samarskite-(Y)] Charles Young collection and XRF ...
ⓘ Sandoval deposit (Old Black Horse; Kentucky)	[Samarskite-(Y)] Jahns (1946)
ⓘ Silver Plate deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ St Joseph deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Vestegard Pegmatite	[Samarskite-(Y)] Jahns (1946)
ⓘ Wyoming deposit	[Samarskite-(Y)] Jahns (1946)
La Madera-Paloma Canyon area ⓘ Ancen deposit (Ancon deposit)	[Samarskite-(Y)] Jahns (1946)
ⓘ El Floto deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ La Paloma deposit	[Samarskite-(Y)] Jahns (1946) +1 other reference
Las Tablas ⓘ Buena Vista deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Kiawa Pegmatites	[Samarskite-(Y)] Jahns (1946) +2 other references
ⓘ South Kiawa	[Samarskite-(Y)] Jahns (1946)
ⓘ Lobata mine	[Samarskite-(Y)] Bull 167 University of New Mexico +1 other reference
Persimmon Peak-Las Tablas Group ⓘ Alma deposit (Kansas City deposit)	[Samarskite-(Y)] Jahns (1946)
ⓘ Canary Bird Pegmatite	[Samarskite-(Y)] Jahns (1946)
ⓘ Meadow deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Silver Spur deposit (Old Eureka; Hoyt-Seward; Las Tablas)	[Samarskite-(Y)] Jahns (1946)
South Petaca ⓘ Globe pegmatite (Globe Mine)	[Samarskite-(Y)] Jahns (1946) +1 other reference
San Miguel County ⓘ Elk Mountain Mining District	[Samarskite-(Y)] Northrop et al. (1996)
ⓘ Guy no. 1 deposit	[Samarskite-(Y)] Jahns (1946)
ⓘ Tecolote District	[Samarskite-(Y), Yttrotantalite-(Y)] Northrop et al. (1996)
ⓘ Old Priest mine	[Samarskite-(Y)] Northrop et al. (1996)
Taos County ⓘ Tres Piedras area	[Samarskite-(Y)] Northrop et al. (1996)
New York Lewis County ⓘ Lyons Falls (Lyon Falls pegmatite)	[Samarskite-(Y)] Jensen (1978)
ⓘ North Carolina	[Yttrotantalite-(Y)] Genth et al. (1881)
ⓘ Buncombe County	[Samarskite-(Y)] Smithsonian Institution Mineral ...
Burke County Brindletown ⓘ J.C. Mills Mine (Mill's Mine; Mills's Mine)	[Samarskite-(Y)] Rocks & Min.:60:86.
ⓘ Jackson County	[Samarskite-(Y)]
Cashiers ⓘ Sheepcliff Mine	[Samarskite-(Y)] Wilson et al. (1978)
ⓘ McDowell County	[Samarskite-(Y)] Genth (1891)
Montreat ⓘ MLNC Pegmatite Site	[Samarskite-(Y)] Wilson et al. (1978)
ⓘ Mitchell County	[Calciosamarskite] Hanson et al. (1999)
ⓘ Calhoun Smith Mine	[Samarskite-(Y)] Wilson et al. (1978)
Crabtree Creek ⓘ Field Mine	[Samarskite-(Y)] - (n.d.)
Grassy Creek ⓘ Grassy Creek Mine	[Samarskite-(Y)] Dana 6:740.
ⓘ Hoppus Mine	[Samarskite-(Y)] - (n.d.)
ⓘ Pink Mine	[Samarskite-(Y)] - (n.d.)
Spruce Pine ⓘ English Mine (English Knob Mine)	[Samarskite-(Y)] Smithsonian Institution Mineral ...
Greasy Creek Township ⓘ Wiseman Mine (Old Mart Wiseman Mine; Sullins-Wiseman Mine)	[Samarskite-(Y)] Genth (1891)
ⓘ McKinney Mine (Power Mill Creek Mine)	[Samarskite-(Y)] Wood et al. (1996)
ⓘ Rutherford County	[Samarskite-(Y)] Genth (1891)
ⓘ Swain County	[Samarskite-(Y)]
Bryson City Feldspar Mining District ⓘ Carson Kaolin and Feldspar Mines (Hill Mine)	[Samarskite-(Y)] Wilson et al. (1978)
ⓘ Cox No. 1 Feldspar and Kaolin Mine	[Samarskite-(Y)] Wilson et al. (1978)
ⓘ Yancey County	[Samarskite-(Y)]
Celo Micaville ⓘ Webb Quarry	[Samarskite-(Y)] Mineralogical Research Company
ⓘ Sally Knob Mine	[Samarskite-(Y)] - (n.d.)
Crabtree Creek ⓘ Carolina Mineral Company No. 20 Mine (Old 20 Mine)	[Samarskite-(Y)] Lesure (1968)
ⓘ Polly Randolph Mine	[Samarskite-(Y)] Warner et al. (2009)
Toe River ⓘ Peterson Mine	[Samarskite-(Y)] Warner et al. (2009)
ⓘ Webb Mine	[Samarskite-(Y)] Christopher O'Neill
Pennsylvania Delaware County Middletown Township Elwyn ⓘ Mineral Hill	[Samarskite-(Y)] Gordon (1922)
ⓘ Crump's Quarry	[Samarskite-(Y)] Gordon (1922)
Texas Burnet County ⓘ Cactus Jack pegmatite	[Samarskite-(Y)] Self-collected by Franklin Roberts.
ⓘ Clear Creek pegmatite	[Samarskite-(Y)] Crook et al. (1977) +1 other reference
Llano County Bluffton ⓘ Baringer Hill Mine ?	[Samarskite-(Y)] Smith (1991)
ⓘ Kiam pegmatite	[Samarskite-(Y)] Smith (1991)
Kingsland Granite Company Quarry (Petrick Quarry) ⓘ Petrick pegmatite	[Samarskite-(Y)] Arthur Smith et al. (2008)
Llano ⓘ Badu Hill quarry ?	[Samarskite-(Y)] Smith (1991)
Utah Tooele County Dugway Range ⓘ Granite Mountain Mining District	[Samarskite-(Y)] Bullock (1981)
ⓘ Blue Bell Mine	[Samarskite-(Y)] Bullock (1981)
Sheeprock Mountains East Erickson Mining District ⓘ Hard-to-Beat Canyon	[Samarskite-(Y)] Bullock (1981)
ⓘ Sheeprock Canyon	[Samarskite-(Y)] Bullock (1981)
ⓘ Silver King Mine	[Samarskite-(Y)] Bullock (1981)
Virginia Amelia County Amelia (Amelia Court House) ⓘ Rutherford Mines	[Samarskite-(Y)] Dietrich (1990)
Winterham ⓘ Morefield Mine (Morefield pegmatite)	[Samarskite-(Y)] Dietrich (1990)
Bedford County Moneta-Forest Otter Hill ⓘ Mitchell Mine (Hottinger Mine)	[Samarskite-(Y)] Rocks & Min.: 60:165.
ⓘ Patterson Mine (Johnson Mine)	[Samarskite-(Y)] Dietrich (1990)
ⓘ Thunder Hill	[Samarskite-(Y)] Dietrich (1990)
Powhatan County Flat Rock ⓘ White Peak Mines Nos. 1 through 4 (Miller Mine; Purcell Mine)	[Samarskite-(Y)] Rocks & Min.: 60:168.
Washington Ferry County ⓘ San Poil Prospect	[Samarskite-(Y)] Cannon (1975)
Stevens County Orient Mining District ⓘ AA Prospect	[Samarskite-(Y)] Cannon (1975)
Wisconsin Marathon County Wausau Intrusive Complex Nine Mile Pluton ⓘ Koss pit	[Samarskite-(Y)] www.uwrf.edu/~wc01
Wood County ⓘ Cary Mound area quarries	[Samarskite-(Y)] Rocks & Minerals 82:409-410
ⓘ Haske Quarry	[Samarskite-(Y)] Buchholz et al. (2006)
Wyoming Carbon County Big Creek pegmatite District ⓘ Platt Pegmatite Mine	[Samarskite-(Y)] Richard Gunter Collection. +1 other reference

Zambia
Copperbelt Province Lufwanyama District ⓘ Luswishi River	[Samarskite-(Y)] Picenza B. (1975)

Zimbabwe
Mashonaland East Mudzi District ⓘ Donsa pegmatite	[Yttrotantalite-(Y)] Gallagher (1967)
Mutoko District (Mtoko District) Mutoko ⓘ Fungwe Pegmatite	[Samarskite-(Y)] Gallagher (1967)

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