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Londonite-Rhodizite Series

A solid-solution series between two end-member minerals

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Photos of Londonite-Rhodizite Series (224)Discuss Londonite-Rhodizite Series

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Edit Londonite-Rhodizite Series Add Synonym Edit CIF structures Clear Cache

Londonite-Rhodizite Series

Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar

Londonite-Rhodizite Series

Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar

Rhodizite

Ampasogona pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa, Betafo District, Vakinankaratra, Madagascar

Londonite-Rhodizite Series

Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar

Rhodizite

Ampasogona pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa, Betafo District, Vakinankaratra, Madagascar

Londonite-Rhodizite Series

Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar

Londonite-Rhodizite Series

Antandrokomby pegmatite, Manandona Valley, Sahatsiho Ambohimanjaka, Ambositra District, Amoron'i Mania, Madagascar

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About Londonite-Rhodizite SeriesHide

Series Formula:

CsBe₄Al₄(B₁₁Be)O₂₈ to KBe₄Al₄(B₁₁Be)O₂₈

A series between Londonite and Rhodizite

Individual crystals from Madagascar have typically a Cs-rich rim but exhibit an overall patchy, heterogeneous distribution of Cs-dominant and K-dominant zones in interior portions of crystals (Simmons et al. 2001).

Unique IdentifiersHide

Mindat ID:

32227

Long-form identifier:

mindat:1:1:32227:2

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	Year	Locality	Temp (K)
0014483	Rhodizite	Pring A, Din V K, Jefferson D A, Thomas J M (1986) The crystal chemistry of rhodizite: a re-examination Mineralogical Magazine 50 163-172	1986	Ambatofinandrahana, Ankarata Mts, Madagascar	293
0010650	Londonite	Taxer K J, Buerger M J (1967) The crystal struture of rhodizite to name the Cs dominant phase: londonite Zeitschrift fur Kristallographie 125 423-436	1967	Manjaka, Madagascar	293
0015418	Rhodizite	Buerger M J, Taxer K (1966) Rhodizite. Structure and composition Science 152 500-502	1966	Manjaka, Madagascar	293
0017717	Londonite	Gatta G D, Vignola P, McIntyre G J, Diella V (2010) On the crystal chemistry of londonite [(Cs,K,Rb)Al4Be5B11O28]: a single-crystal neutron diffraction study at 300 and 20 K American Mineralogist 95 1467-1472	2010	Antsongombato Gem mine, Betafo district, Madagascar	300
0017718	Londonite	Gatta G D, Vignola P, McIntyre G J, Diella V (2010) On the crystal chemistry of londonite [(Cs,K,Rb)Al4Be5B11O28]: a single-crystal neutron diffraction study at 300 and 20 K American Mineralogist 95 1467-1472	2010	Antsongombato Gem mine, Betafo district, Madagascar	20

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Rhodizite'
loop_
_publ_author_name
'Pring A'
'Din V K'
'Jefferson D A'
'Thomas J M'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 50 
_journal_year 1986
_journal_page_first 163
_journal_page_last 172
_publ_section_title
;
 The crystal chemistry of rhodizite: a re-examination
;
_database_code_amcsd 0014483
_chemical_compound_source 'Ambatofinandrahana, Ankarata Mts, Madagascar'
_chemical_formula_sum 'K.46 Cs.36 Rb.06 Na.02 Al4 Be4.56 B11.35 O28'
_cell_length_a 7.318
_cell_length_b 7.318
_cell_length_c 7.318
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 391.902
_exptl_crystal_density_diffrn      3.352
_symmetry_space_group_name_H-M 'P -4 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-z,x,-y'
  '-y,z,-x'
  '-x,y,-z'
  'x,-z,-y'
  'z,-y,-x'
  'y,-x,-z'
  'x,z,y'
  'z,y,x'
  'y,x,z'
  '-z,-x,y'
  '-y,-z,x'
  '-x,-y,z'
  'z,-x,-y'
  'y,-z,-x'
  'x,-y,-z'
  '-x,z,-y'
  '-z,y,-x'
  '-y,x,-z'
  '-x,-z,y'
  '-z,-y,x'
  '-y,-x,z'
  'z,x,y'
  'y,z,x'
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
K   0.00000   0.00000   0.00000   0.46000   0.02500
Cs   0.00000   0.00000   0.00000   0.36000   0.02500
Rb   0.00000   0.00000   0.00000   0.06000   0.02500
Na   0.00000   0.00000   0.00000   0.02000   0.02500
Al   0.36000   0.36000   0.36000   1.00000   0.00150
Be   0.74290   0.74290   0.74290   1.00000   0.00590
B   0.24820   0.50000   0.00000   0.94580   0.00360
BeB   0.24820   0.50000   0.00000   0.04670   0.00360
O1   0.61890   0.61890   0.61890   1.00000   0.00240
O2   0.36370   0.36370   0.09970   1.00000   0.00380
O3   0.13470   0.13470   0.60130   1.00000   0.00360

Common AssociatesHide

Associations Based on Photo Data:

47 photos of Londonite-Rhodizite Series associated with Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
16 photos of Londonite-Rhodizite Series associated with Quartz	SiO₂
14 photos of Londonite-Rhodizite Series associated with 'Rubellite'
9 photos of Londonite-Rhodizite Series associated with Albite	Na(AlSi₃O₈)
8 photos of Londonite-Rhodizite Series associated with 'Manganese-bearing Fluorapatite'	(Ca,Mn²⁺)₅(PO₄)₃(F,Cl,OH) or Ca₅([P,Mn⁵⁺]O₄)₃(F,Cl,OH)
7 photos of Londonite-Rhodizite Series associated with Microcline	K(AlSi₃O₈)
6 photos of Londonite-Rhodizite Series associated with K Feldspar
4 photos of Londonite-Rhodizite Series associated with Elbaite	Na(Li_1.5Al_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
3 photos of Londonite-Rhodizite Series associated with Schorl	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
2 photos of Londonite-Rhodizite Series associated with 'Elbaite-Liddicoatite Series'

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 Londonite-Rhodizite SeriesHide

mindat.org URL:

https://www.mindat.org/min-32227.html
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References for Londonite-Rhodizite SeriesHide

Reference List:

Simmons, W. B.; Pezzotta, F.; Falster, A. U.; Webber, K. L. (2001) Londonite, a new mineral species: the Cs-dominant analogue of rhodizite from the Antandrokomby granitic pegmatite, Madagascar. The Canadian Mineralogist, 39 (3). 747-755 doi:10.2113/gscanmin.39.3.747

Laurs, Brendan M.; Pezzotta, Federico; Simmons, William B. (Skip); Falster, Alexander U.; Muhlmeister, Sam (2002) Rhodizite-Londonite from the Antsongombato Pegmatite, Central Madagascar. Gems & Gemology, 38 (4). 326-339 doi:10.5741/gems.38.4.326

Localities for Londonite-Rhodizite SeriesHide

Showing 45 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.


Madagascar
Amoron'i Mania ⓘ Ambatofinandrahana District	[Rhodizite] Pring et al. (1986)
Fenoarivo ⓘ Ambalalehifotsy pegmatite	[Rhodizite] Behier (1960)
Ambositra District Sahatsiho Ambohimanjaka ⓘ Andasy pegmatite	[Rhodizite] Pezzotta et al. (1997) +1 other reference
ⓘ Fiakarandava pegmatite	[Rhodizite] Pezzotta et al. (1997) +1 other reference
ⓘ Ifasina	[Rhodizite] Pezzotta et al. (1998) +1 other reference
Manandona Valley ⓘ Antandrokomby pegmatite	[Londonite, Rhodizite] Lacroix (1922) +3 other references
ⓘ Besesitra pegmatite	[Rhodizite] Pezzotta et al. (1997)
ⓘ Unnamed pegmatite 150 m NW of Antandrokomby	[Rhodizite] Pezzotta et al. (1997)
Analamanga ⓘ Manjakandriana District ?	[Rhodizite] Arthur Thomas (2009)
Anosy Amboasary Sud District Tranomaro ⓘ Anjahamiary pegmatite	[Rhodizite] Behier (1960)
ⓘ Camp Robin area	Oleg Lopatkin photo & collection +1 other reference
Vakinankaratra Antsirabe II District Ibity Sahatany Valley ⓘ Antsahanana quarry	[Rhodizite] Bruno Tesseron (Mineralphil Madagascar)
ⓘ Ilontsa (Ilotsa)	[Rhodizite] Larsen (2003)
ⓘ Manjaka (Sahananana)	[Londonite, Rhodizite] Lacroix (1912) +1 other reference
Sahanivotry Manandona ⓘ ~~Tsilaizina pegmatite~~	[Rhodizite] Lefevre et al. (1998)
Betafo District Andrembesoa Ampanivana area ⓘ Ambatomigaby	[Londonite] Pers. com Dr. Federico Pezzotta to Knut ... +1 other reference
ⓘ Ampanivana pegmatite	[Londonite] Simmons et al. (2001)
ⓘ Sakelo	Knut Edvard Larsen collection # M-505
ⓘ Tetezantsio-Andoabatokely Pegmatite Field	Juergen Roth photo and collection ( Photo id 1252487 )
ⓘ Ampasogona pegmatite	[Rhodizite] Knut Edvard Larsen Collection # M-710 +1 other reference
ⓘ Andoabatokely	Knut Edvard Larsen collection # M-440
ⓘ Tetezantsio pegmatites	[Londonite, Rhodizite] Laurs et al. (Skip) +1 other reference
Anosiarivo Manapa Antsentsindrano ⓘ Antsongombato gem mine	[Londonite, Rhodizite] [Eur.J.Min 13:159-165] +2 other references
ⓘ Manapa pegmatite Field	De Ascenção Guedes et al. (2011)
ⓘ Ambalabe pegmatite	[Londonite] Knut Edvard Larsen collection +1 other reference

Russia
Sverdlovsk Oblast Beryozovsky Sarapulka ⓘ Ministerskaya Yama Pit	[Londonite, Rhodizite] Pekov et al. (2010)
Prigorodny District Yuzhakovo Alabashka pegmatite field ⓘ Mokrusha Mine	[Londonite] Pekov et al. (2010)
Rezhevsky District Shaitanka District ⓘ Mor's Pit	[Londonite, Rhodizite] Pekov et al. (2010)

UK
England Devon West Devon Okehampton Hamlets ⓘ ~~Meldon Aplite Quarry~~	[Rhodizite] www.mindat.org (n.d.) +3 other references

USA
Wisconsin Florence County Fern Pine River pegmatites ⓘ Animikie Red Ace pegmatite	[Rhodizite] Falster et al. (1996)

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