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Strunzite Group

A group of related mineral species

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Photos of Strunzite Group (459)Recorded Ages and Analyses Discuss Strunzite Group

Strunzite Group Gallery Search Photos of Strunzite Group

Edit Strunzite Group Add Synonym Edit CIF structures Clear Cache

Strunzite, etc.

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany

Strunzite, etc.

White Elephant Mine, Cicero Peak, Pringle, Custer Mining District, Custer County, South Dakota, USA

Strunzite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA

Strunzite, etc.

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany

Strunzite, etc.

White Elephant Mine, Cicero Peak, Pringle, Custer Mining District, Custer County, South Dakota, USA

Strunzite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA

Strunzite, etc.

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany

Strunzite, etc.

White Elephant Mine, Cicero Peak, Pringle, Custer Mining District, Custer County, South Dakota, USA

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About Strunzite GroupHide

This page provides mineralogical data about Strunzite Group.

Unique IdentifiersHide

Mindat ID:

35750

Long-form identifier:

mindat:1:1:35750:6

Chemical AnalysisHide

Oxide wt%:

	1	2
Fe₂₀₃	46.3 %
P₂₀₅	28.2 %
H₂₀	26.0 %
Fe₂O₃		43.8 %
FeO		2.0 %
P₂O₅		27.6 %
SO₃		0.9 %
H₂O		26.3 %
Total:	100.5 %	100.6 %

Empirical formulas:

Sample ID	Empirical Formula
3	(Zn_0.74Mn²⁺_0.23)Σ _0.97Fe³⁺_1.99(PO₄)₂(OH)₂·6.5H₂O
4	(Zn_0.93Mn²⁺_0.08)Σ_1.01(Fe³⁺_1.84Mn²⁺_0.19)Σ_2.03(PO₄)₂(OH)₂·6.5H₂O

Sample references:

ID	Type	Locality	Reference	Notes
1		Mont-des-Groseillers, Blaton, Bernissart, Hainaut, Wallonia, Belgium	Peacor, D.R., Dunn, P.J., Simmons, W.B., Ramik, R.A. (1987) Ferristrunzite, a new member of the strunzite group, from Blaton, Belgium. Neues Jahrbuch für Mineralogie, Monatshefte 1987, Heft 10, 453-457.
2		" "	Van Tassel, R. (1966) Min
3	Type Specimen	Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal	Kampf, Anthony R., Grey, Ian E., Alves, Pedro, Mills, Stuart J., Nash, Barbara P., MaCrae, Colin M., Keck, Erich (2017) Zincostrunzite, ZnFe³⁺₂(PO₄)₂(OH)₂ · 6.5H₂O, a new mineral from the Sitio do Castelo mine, Portugal, and the Hagendorf-Süd pegmatite, Germany. European Journal of Mineralogy, 29 (2) 315-322 doi:10.1127/ejm/2017/0029-2593	Electron microprobe
4	Type Specimen	Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany	Kampf, Anthony R., Grey, Ian E., Alves, Pedro, Mills, Stuart J., Nash, Barbara P., MaCrae, Colin M., Keck, Erich (2017) Zincostrunzite, ZnFe³⁺₂(PO₄)₂(OH)₂ · 6.5H₂O, a new mineral from the Sitio do Castelo mine, Portugal, and the Hagendorf-Süd pegmatite, Germany. European Journal of Mineralogy, 29 (2) 315-322 doi:10.1127/ejm/2017/0029-2593

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0019617	Strunzite	Grey I E, Macrae C M, Keck E, Birch W D (2012) Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Sud pegmatite, Germany Mineralogical Magazine 76 1165-1174		2012	Hagendorf-Sud pegmatite, Germany	0	293
0015670	Strunzite	Fanfani L, Tomassini M, Zanazzi P F, Zanzari A R (1978) The crystal structure of strunzite, a contribution to the crystal chemistry of basic ferric-manganous hydrated phosphates Tschermaks Mineralogische und Petrographische Mitteilungen 25 77-87		1978	Big Chief mine, Glendale, South Dakota	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Strunzite'
loop_
_publ_author_name
'Grey I E'
'Macrae C M'
'Keck E'
'Birch W D'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 76 
_journal_year 2012
_journal_page_first 1165
_journal_page_last 1174
_publ_section_title
;
 Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Sud
 pegmatite, Germany
;
_database_code_amcsd 0019617
_chemical_compound_source 'Hagendorf-Sud pegmatite, Germany'
_chemical_formula_sum 'Mn (Fe1.44 Al.56) P2 O16 H14'
_cell_length_a 10.277
_cell_length_b 9.826
_cell_length_c 7.205
_cell_angle_alpha 90.077
_cell_angle_beta 98.865
_cell_angle_gamma 118.442
_cell_volume 629.770
_exptl_crystal_density_diffrn      2.545
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Mn   0.50020   0.32890   0.24970   1.00000   0.01800
Fe(1)   0.96940   0.24390   0.13840   0.72000   0.01200
Al(1)   0.96940   0.24390   0.13840   0.28000   0.01200
Fe(2)   0.03010   0.77410   0.36180   0.72000   0.01300
Al(2)   0.03010   0.77410   0.36180   0.28000   0.01300
P(1)   0.81320   0.46660   0.05840   1.00000   0.01200
P(2)   0.18690   0.15270   0.44150   1.00000   0.01300
O(1)   0.64740   0.40220   0.06350   1.00000   0.02500
O(2)   0.84170   0.33040   0.02140   1.00000   0.02300
O(3)   0.90970   0.55590   0.24710   1.00000   0.01600
O(4)   0.84960   0.57060   0.89440   1.00000   0.01900
O(5)   0.09010   0.14560   0.25120   1.00000   0.01600
O(6)   0.15640  -0.01220   0.47770   1.00000   0.02100
O(7)   0.35150   0.25150   0.43790   1.00000   0.02400
O(8)   0.15290   0.22260   0.60360   1.00000   0.01900
O-h1   0.96150   0.30940   0.39170   1.00000   0.01900
O-h2   0.03840   0.84740   0.10840   1.00000   0.02000
Ow1   0.30870   0.24070   0.01200   1.00000   0.02700
Ow2   0.69220   0.43300   0.48820   1.00000   0.02500
Ow3   0.49970   0.55110   0.25020   1.00000   0.02900
Ow4   0.50320   0.10240   0.25040   1.00000   0.05900
Ow5   0.23170   0.77660   0.33610   1.00000   0.02700
Ow6  -0.23190   0.04560   0.16520   1.00000   0.02400
HOh1   0.94600   0.38000   0.38400   1.00000   0.03900
HOh2   0.03600   0.92700   0.12200   1.00000   0.03900
H1A   0.31100   0.27700  -0.09100   1.00000   0.03900
H1B   0.25000   0.25000   0.05700   1.00000   0.03900
H2A   0.67700   0.47200   0.57700   1.00000   0.03900
H2B   0.76800   0.49000   0.45900   1.00000   0.03900
H3A   0.55400   0.62400   0.32900   1.00000   0.03900
H3B   0.42600   0.50700   0.29500   1.00000   0.03900
H4A   0.49200   0.11100   0.14000   1.00000   0.03900
H4B   0.42900   0.03800   0.28000   1.00000   0.03900
H5A   0.21300   0.73600   0.22900   1.00000   0.03900
H5B   0.24200   0.71400   0.40000   1.00000   0.03900
H6A  -0.19500   0.02900   0.26000   1.00000   0.03900
H6B  -0.24500  -0.02700   0.09700   1.00000   0.03900
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Mn 0.01500 0.01600 0.02400 0.00900 0.00100 -0.00100
Fe(1) 0.01300 0.00900 0.01400 0.00800 -0.00400 -0.00300
Al(1) 0.01300 0.00900 0.01400 0.00800 -0.00400 -0.00300
Fe(2) 0.01500 0.00800 0.01600 0.00800 -0.00400 -0.00400
Al(2) 0.01500 0.00800 0.01600 0.00800 -0.00400 -0.00400
P(1) 0.01200 0.00800 0.01700 0.00600 -0.00100 -0.00200
P(2) 0.01300 0.01000 0.01600 0.00700 -0.00300 -0.00100
O(1) 0.01600 0.03500 0.02000 0.00900 0.00000 0.00000
O(2) 0.03100 0.02000 0.02100 0.01900 -0.01000 -0.00700
O(3) 0.02100 0.01500 0.01600 0.01200 0.00000 -0.00200
O(4) 0.02400 0.01500 0.01500 0.01000 -0.00300 0.00100
O(5) 0.01400 0.01500 0.01900 0.00900 -0.00500 -0.00200
O(6) 0.02900 0.01900 0.01900 0.01900 -0.00500 0.00100
O(7) 0.01600 0.02900 0.02000 0.00600 -0.00100 -0.00400
O(8) 0.01200 0.01700 0.02500 0.00700 -0.00400 -0.00400
O-h1 0.02500 0.01900 0.02000 0.01800 -0.00400 -0.00300
O-h2 0.02900 0.01000 0.02300 0.01300 -0.00600 -0.00500
Ow1 0.02600 0.03000 0.03000 0.02000 0.00100 -0.00400
Ow2 0.02100 0.01800 0.03000 0.00700 0.00000 -0.00100
Ow3 0.03500 0.02000 0.02800 0.01400 -0.00700 -0.00500
Ow4 0.06800 0.02800 0.08700 0.02900 0.00700 0.00000
Ow5 0.03000 0.03000 0.02800 0.02200 -0.00200 -0.00300
Ow6 0.02800 0.01800 0.02200 0.01200 -0.00500 -0.00300

Relationship of Strunzite Group to other SpeciesHide

Strunzite Group Members:

Ferristrunzite	Fe³⁺Fe³⁺₂(PO₄)₂(OH)₃ · 5H₂O	Tric.
Ferrostrunzite	Fe²⁺Fe³⁺₂(PO₄)₂(OH)₂ · 6H₂O	Tric.
Strunzite	Mn²⁺Fe³⁺₂(PO₄)₂(OH)₂ · 6H₂O	Tric. 1 : P1
Zincostrunzite	ZnFe³⁺₂(PO₄)₂(OH)₂ · 6.5H₂O	Tric. 1 : P1

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.

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 Strunzite GroupHide

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References for Strunzite GroupHide

Reference List:

Localities for Strunzite GroupHide

Showing 163 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.


Argentina
Córdoba Province San Alberto Department Tránsito District Pampa de Achala ⓘ La Victoria pegmatite	[Strunzite] Gay et al. (1991) +1 other reference
San Luis Province Coronel Pringles Department El Trapiche La Florida ⓘ San Luis Mine	[Strunzite] OYARZABAL et al. (H2O)

Australia
South Australia Pastoral Unincorporated Area Bimbowrie Conservation Park Old Boolcoomata Station White Rock Feldspar Mine ⓘ White Rock No. 2 pegmatite	[Strunzite] Kampf et al. (2018) +1 other reference
Victoria East Gippsland Shire Glen Valley ⓘ Knocker dyke (South Blue Jacket) ?	[Strunzite] Eagle et al. (2015)

Austria
Styria Voitsberg District Edelschrott Modriach Herzogberg ⓘ Ebenlecker farm (Ebenlöcker farm; Ebenlecker quarry)	[Strunzite] Aufschluss 1972 (SB)

Belgium
Wallonia Hainaut Bernissart Blaton ⓘ Mont-des-Groseillers	[Ferristrunzite, Ferrostrunzite, Strunzite] Van Tassel (1966) +8 other references
Liège Visé ⓘ Richelle	[Ferristrunzite] Jockin (en collaboration avec l'université de Liège)
Namur Anhée ⓘ Haut-le-Wastia	[Ferristrunzite] Dillen et al. (1990) +2 other references

Brazil
Minas Gerais Conselheiro Pena Barra do Cuieté ⓘ Bode claim	[Strunzite] sergio varvello
ⓘ Cigana claim	[Ferristrunzite, Strunzite] Baijot et al. (2014)
ⓘ Conselheiro Pena pegmatite district	[Strunzite] King et al. (1993)
Divino das Laranjeiras Linópolis ⓘ Córrego Frio mine	[Strunzite] Cassedanne (1983) +1 other reference
Galiléia Sapucaia do Norte ⓘ Sapucaia mine	[Strunzite] Cassedanne et al. (1999)
Mantena ⓘ São Félix de Minas	[Strunzite] King (n.d.)

Cameroon
Adamawa Region Vina Martap ⓘ Anloua	[Strunzite] F. Pillard : "Contribution à l'étude de l'altération de la vivianite : cas de la vivianite d'Anloua (Cameroun)

Czech Republic
Central Bohemian Region Kutná Hora District Vlkaneč ⓘ Přibyslavice	[Strunzite] Povondra et al. (eds.) +1 other reference
Karlovy Vary Region Cheb District Aš ⓘ Vernéřov	[Ferristrunzite] Breiter K.
Pardubice Region Pardubice District ⓘ Chvaletice	[Strunzite] Prachař +6 other references
ⓘ Litošice	[Strunzite] Jirásek
Morašice ⓘ Morašice deposit	[Strunzite] Vrtiška et al. (2019)
Plzeň Region Domažlice District Otov ⓘ Otov I pegmatite	[Strunzite] J. Stanek: Der Aufschluss 41 (1)
ⓘ Otov II pegmatite	[Strunzite] Č +4 other references
Vysočina Region Žďár nad Sázavou District Bory Dolní Bory ⓘ Pegmatite vein Oldřich	[Strunzite] Staněk (1997)

Europe
ⓘ Albera Massif	[Ferrostrunzite, Strunzite] Berbain et al. (2012)

Finland
Pirkanmaa Orivesi Eräjärvi area ⓘ Viitaniemi pegmatite	[Strunzite] Sandström et al. (2009)

France
Nouvelle-Aquitaine Haute-Vienne Bellac Razès Chanteloube ⓘ Vilatte Quarries (La Vilate)	[Strunzite] Meisser et al. (2008)
ⓘ Vilatte-Haute Quarry (Alluaud Quarry)	[Strunzite] Boisson (1988)
Occitanie Ariège Foix Le Bosc ⓘ Cirque de Pénitence	[Strunzite] Bull. Soc. Franç. Minéralo. ...
ⓘ Penitence 1	[Strunzite] Inventaire mineralogique de l'Ariege (Editions BRGM 1984)
Pyrénées-Orientales Céret Argelès-sur-Mer ⓘ Pegmatite field	[Strunzite] BERBAIN. C et al. (2016)
Collioure ⓘ Pegmatite field	[Ferrostrunzite, Strunzite] Berbain et al. (2012)
Tarn Castres Fontrieu Fumade ⓘ Phosphate occurrence	[Ferristrunzite] Favreau et al. (2013)

Germany
Bavaria Lower Bavaria Regen District Zwiesel Rabenstein ⓘ Hühnerkobel Mine (Hennenkobel Mine)	[Ferrostrunzite, Strunzite] Habel (2006) +1 other reference
ⓘ Savings bank construction site	[Strunzite] Obermüller et al. (1993)
Upper Palatinate Cham District Waldmünchen Althütte ⓘ Pegmatite outcrop	[Ferrostrunzite] Fehr et al. (1985)
Neustadt an der Waldnaab District Pleystein ⓘ Kreuzberg (Rose quartz cliff)	[Strunzite] Dill et al. (2009)
ⓘ Miesbrunn pegmatite–aplite swarm	[Strunzite] Dill et al. (2012)
ⓘ Trutzhofmühle aplite	[Strunzite] Dill et al. (2008) +1 other reference
Waidhaus ⓘ Hagendorf	[Strunzite] Dill et al. (2011)
ⓘ Hagendorf North Pegmatite	[Strunzite] Dill et al. (2013)
ⓘ Hagendorf South Pegmatite	[Strunzite, Zincostrunzite] - (1957) +3 other references
ⓘ 67 m level	[Strunzite]
ⓘ Silbergrube	[Ferristrunzite, Ferrostrunzite, Strunzite] Kastning et al. (1996) +2 other references
Tirschenreuth District Erbendorf Grötschenreuth ⓘ Pegmatite outcrop near Hopfau	[Strunzite] www.vfmg-weiden.de (2001)
Plößberg ⓘ Plößberg-Wildenau pegmatite	[Strunzite] Weiß (1990)
ⓘ Lindner Mine	[Strunzite] DILL et al. (2009)
Hesse Giessen Region Lahn-Dill-Kreis Lahnau Waldgirmes ⓘ Rotläufchen Mine	[Strunzite] e-rocks.com (n.d.)
North Rhine-Westphalia ⓘ Arnsberg	[Ferrostrunzite] van Tassel et al. (1992)
Hochsauerlandkreis Arnsberg Hüsten ⓘ A46 Highway cut	[Strunzite] Arnemann et al. (1988)
ⓘ Uentrop	[Ferristrunzite] www.handbookofmineralogy.org (n.d.)
ⓘ A46 Highway bridge	[Ferrostrunzite, Strunzite] www.mineral-expert.de (n.d.)
Märkischer Kreis Iserlohn Letmathe Helmke quarry nature reserve ⓘ Genna zinc smelter slag locality	[Ferristrunzite, Ferrostrunzite] Bender et al. (1994) +1 other reference
Düsseldorf Wuppertal Aprath castle ⓘ B224 Road cut	[Ferristrunzite] Emser Hefte 1988 (4)
Saxony Görlitz District Neißeaue ⓘ Emmerichswalde	[Ferristrunzite] Witzke et al. (2013)
Thuringia Nordhausen District Harztor Herrmannsacker Lange Tal Neustadt dam ⓘ Unnamed quarry	[Ferristrunzite] Gröbner et al. (2011)

Italy
Apulia Taranto Province ⓘ Manduria	[Ferrostrunzite]
Lombardy Lecco Province Colico ⓘ Piona Peninsula	[Strunzite] VIGNOLA et al. (2007)
Dorio ⓘ Luna pegmatitic dyke	[Ferrostrunzite] Vignola et al. (2011) +1 other reference
Trentino-Alto Adige/Südtirol Trento Province Rabbi Ceresè ⓘ Malga Garbella di sotto	[Strunzite] Bertoldi G. e Boscardin M. (1989)
ⓘ Rabbi Valley	[Strunzite] Bertoldi G. e Boscardin M. (1989)

Japan
Hyogo Prefecture Kobe city Nishi-ku ⓘ Oshibedani	[Strunzite] Kato et al (1988)
ⓘ Youda (Yoda)	[Strunzite] S. Matsubara (2000)

Namibia
Erongo Region Karibib Constituency Okatjimukuju Farm 55 (Friedrichsfelde Farm) ⓘ Clementine II pegmatite	[Strunzite] Keller et al. (1989)

New Zealand
Tasman Region ⓘ Glenhope	[Strunzite] Sorrell (n.d.)
ⓘ Dry Weather Road Locality	[Ferrostrunzite] Ralph Merrill - Minerals Unlimited

Poland
Lower Silesian Voivodeship Świdnica County Gmina Świdnica ⓘ Lutomia Górna	[Ferrostrunzite, Strunzite] Włodek et al. (2015)
Michałkowa pegmatites ⓘ Góry Sowie Block	[Ferrostrunzite] Pieczka et al. (2017)
Wrocław County Gmina Kobierzyce ⓘ Pustków Wilczkowski ?	[Ferristrunzite] Ł. Kruszewski PXRD & pXRF data (paper in preparation)

Portugal
Castelo Branco Vila Velha de Ródão Vila Velha de Ródão ⓘ Sitio do Cobre Mine	Martins da Pedra collection
Guarda Gouveia Folgosinho ⓘ Sítio do Castelo Mine	[Ferristrunzite, Strunzite, Zincostrunzite] Alves (2016)
Guarda Vela ⓘ Vela Nordeste quarry	[Strunzite] Alves (n.d.)
Sabugal Bendada ⓘ Bendada Mines	[Strunzite] Schnorrer-Köhler et al. (1991)
ⓘ Fonte da Cal Mine	[Strunzite] Alves (n.d.)
Viana do Castelo Caminha Arga de Baixo ⓘ Cerdeirinha Mine	[Strunzite]
Ponte da Barca Touvedo (São Lourenço e Salvador) ⓘ Pedra da Moura Mine	[Strunzite] Self-collected by Pedro Alves.
Ponte de Lima Cabração e Moreira do Lima Moreira do Lima ⓘ Breia Mine ("Lourinhal quarry")	[Strunzite]
Vila Nova de Cerveira Covas ⓘ Aplito-pegmatitic area	[Strunzite] Alves (n.d.)
Viseu Mangualde Mangualde (Mesquitela e Cunha Alta) ⓘ Cubos-Mesquitela-Mangualde area	[Strunzite]

Spain
Galicia Pontevedra Gondomar Vincios Galiñeiro Complex ⓘ Santa Marina Mine	[Strunzite] Calvo Rebollar (2015)

Sweden
Norrbotten County Kiruna Svappavaara ⓘ Leveäniemi Mine	[Ferrostrunzite] Jansson (2000) +1 other reference
Stockholm County Haninge Norrö ⓘ Norrö Mica Quarry	[Strunzite] Gustafsson (1989) +1 other reference
Sigtuna Arlanda ⓘ Norrskogen	[Strunzite] Swedish Museum of Natural History (Naturarv database)

Switzerland
Ticino Locarno Brissago ⓘ Ponte Valley	[Strunzite] Weiß (1989) +1 other reference

UK
England Cornwall Perranzabuloe Perran Iron Lode (Great Perran Iron Lode) ⓘ Gravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine)	[Ferrostrunzite, Strunzite] Weiß (1989) +1 other reference
Treverbyn Stenalees ⓘ Gunheath China Clay Pit ?	[Strunzite] M Kampf collection

USA
Alabama Coosa County Rockford Mining District Two Bit pegmatite ⓘ Prospect No. 28 (Two Bit prospect)	[Strunzite] Cook et al. (1982)
ⓘ Williams pegmatite	[Strunzite] Rocks & Minerals: 70 (5)
California San Diego County Pala Mining District Pala Tourmaline Queen Mountain (Pala Mtn; Queen Mtn) ⓘ Stewart Mine	[Strunzite] King (n.d.)
Connecticut Middlesex County East Hampton Cobalt ⓘ State Forest Quarry No. 2	[Strunzite] Schooner (1958, 1961)
Florida Hardee County South Florida Phosphate Mining District ⓘ CF Garwood Mine	[Ferrostrunzite, Strunzite] Marc V. Hurst (2012)
Polk County Central Florida Phosphate Mining District (Bone Valley) Homeland ⓘ Clear Spring Mine	[Ferrostrunzite, Strunzite] Marc V. Hurst (2012)
Noralyn/Phosphoria Mines (IMC-Agrico) ⓘ Phosphoria Mine ?	[Ferrostrunzite, Strunzite] Marc V. Hurst (2012)
Indiana Pike County ⓘ Bethel Church	[Ferrostrunzite] Simmons et al. (1984)
Maine Androscoggin County Auburn East Mount Apatite Mining District ⓘ Maine Feldspar Quarry	[Strunzite] Mineralogy of Maine
Poland ⓘ Berry-Havey Quarry	[Strunzite] King et al. (1994) +1 other reference
Cumberland County Baldwin West Baldwin ⓘ Estes Quarry	[Strunzite] Thompson et al. (2000) +1 other reference
Oxford County Greenwood Uncle Tom Mountain ⓘ Emmons Quarry	[Strunzite] Falster et al. (2019) +1 other reference
Hebron Mount Rubellite ⓘ Mount Rubellite Quarries	[Strunzite] King et al. (1994)
Newry ⓘ Bell pit	[Strunzite] King et al. (1994) +1 other reference
ⓘ Crooker Gem Pegmatite Quarries	[Strunzite] King et al. (1994)
ⓘ Dunton Gem Quarry	[Ferrostrunzite, Strunzite] King et al. (1994) +1 other reference
ⓘ Nevel Quarry	[Strunzite] King et al. (6)
Norway ⓘ B.B. No. 7 Quarry	[Strunzite] King et al. (1994)
Paris ⓘ Mount Mica Quarry	[Strunzite] King et al. (1994)
ⓘ Ryerson Hill Quarries	[Strunzite]
Rumford ⓘ Black Mountain Quarry	[Strunzite]
ⓘ Lookout Quarry	[Strunzite] Scott Soucey and Tim Blake
ⓘ Red Hill quarries	[Strunzite] King et al. (1994) +1 other reference
Stoneham ⓘ Cole Quarry	[Strunzite] Thompson et al. (1998)
ⓘ Lord Hill Quarry (Lord Hill Mine)	[Strunzite] Thompson et al. (2005)
New Hampshire Cheshire County Alstead ⓘ Fitzgibbons Mine	[Strunzite] Januzzi et al. (1976) +1 other reference
ⓘ French No. 2 Mine	[Strunzite] Hurlbut (1965) +1 other reference
Walpole ⓘ Chickering Mine	[Strunzite] Cristofono (n.d.)
Grafton County Alexandria ⓘ E.E. Smith Mine	[Strunzite] Smith (2005)
Groton ⓘ Charles Davis Mine	[Strunzite] Rocks & Min. 80:251
ⓘ Fletcher Mine	[Strunzite] Smith (2005) +1 other reference
ⓘ Palermo No. 1 Mine	[Ferrostrunzite, Strunzite] Whitmore et al. (2004)
ⓘ Palermo No. 16 Mine	[Strunzite] Whitmore et al. (2004)
ⓘ Palermo No. 2 Mine	[Strunzite] Geological Society of America Abstracts ... +2 other references
Orange ⓘ Keyes Mica Quarries	[Strunzite] Januzzi et al. (1976) +1 other reference
Hillsborough County Deering ⓘ Gringrass Farm locality	[Strunzite] Rocks & Min. 80:256 (2005) +1 other reference
Strafford County Strafford ⓘ Parker Mountain Mine	[Strunzite] Rocks & Min.:64:504. +1 other reference
Sullivan County Newport ⓘ Chandlers Mill Quarry	[Strunzite] Smith (2005)
ⓘ George Frank Smith Quarry	[Strunzite] King (n.d.)
New Jersey Gloucester County Harrison Township ⓘ Mullica Hill	Henderson (1980)
ⓘ Raccoon Creek	[Ferrostrunzite] Neues Jahrb.Min. (1983)
Monmouth County Upper Freehold Township Arneytown ⓘ My Creek locality	[Ferrostrunzite] C.G.Segeler (personal communication)
ⓘ Hornerstown	[Ferrostrunzite, Strunzite] RRUFF ID: R100079
North Carolina Cleveland County Kings Mountain ⓘ Foote Lithium Co. Mine	[Strunzite] Horton et al. (1981) +1 other reference
Gaston County ⓘ LCA Mine	[Strunzite]
South Dakota Custer County Custer Mining District Custer Beecher Lode ⓘ Beecher No. 2 (Longview Mine)	[Strunzite] Jesse Corneliusen Collection +1 other reference
ⓘ Roosevelt group (Rough Rider)	[Strunzite] Loomis (2011)
Fourmile ⓘ Tip Top Mine	[Strunzite] Rocks & Minerals: 60: 117. +1 other reference
Pringle Cicero Peak ⓘ White Elephant Mine	[Strunzite] Smith et al. (2000)
Pennington County Keystone Mining District Glendale ⓘ Big Chief Mine	[Strunzite] Campbell et al. (1985)
ⓘ Hesnard Mine	[Strunzite] Smith et al. (2000)
Keystone ⓘ Etta Mine	[Strunzite] Rocks & Minerals: 57: 160 &/or 60: 110 ...
ⓘ White Cap Mine	[Strunzite] Smith et al. (2000)
Wisconsin Rusk County Ladysmith ⓘ Flambeau Mine	[Ferristrunzite] wgnhs.uwex.edu (n.d.)

Mars
Aeolis quadrangle Gusev Crater Columbia Hills Husband Hill Cumberland Ridge ⓘ Paso Robles site ?	[Ferristrunzite] Lane et al. (2008)

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