Ferricerite-(LaCa)
A valid IMA mineral species
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About Ferricerite-(LaCa)
Formula:
(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
formerly given as: (La,Ce,Ca)9Fe3+(SiO4)3(SiO3OH)4(OH)3
Colour:
Light yellow to pinkish-brown
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
4.7
Crystal System:
Trigonal
Member of:
Name:
Originally named cerite-(La) for being La-dominant-analogue of cerite-(Ce), in accordance with the Levinson system of nomenclature of REE-minerals. It was renamed to ferricerite-(La) by the IMA in 2020 when the cerite supergroup was created.
The lanthanum and iron analogue of Cerite-(Ce). Isostructural with phosphates of Merrillite Group.
Cerite-(La) was renamed as ferricerite-(La) since Fe is dominant in the M site (CNMNC Newsletter 57). New data induced change to the current ferricerite-(LaCa).
Cerite-(La) was renamed as ferricerite-(La) since Fe is dominant in the M site (CNMNC Newsletter 57). New data induced change to the current ferricerite-(LaCa).
Unique Identifiers
Mindat ID:
26408
Long-form identifier:
mindat:1:1:26408:4
Similar Names
| Ferrierite | A synonym of Ferrierite Subgroup | |
| Ferrisurite | A valid IMA mineral species | (Pb,Ca)2.4Fe23+(Si4O10)(CO3)1.7(OH)3 · nH2O |
IMA Classification of Ferricerite-(LaCa)
Approved
IMA status notes:
Renamed by the IMA
Approval year:
2001
First published:
2002
Approval history:
Sept. 2020 renamed as Ferricerite-(La) with the formula (La,Ce,Ca)9Fe3+(SiO4)3(SiO3OH)4(OH)3
name & formula changes: IMA proposals of May 2023
name & formula changes: IMA proposals of May 2023
Type description reference:
Pakhomovsky, Y. A., Men'shikov, Y. P., Yakovenchuk, V. N., Ivanyuk, G. Yu., Krivovichev, S. V., Burns, P. C. (2002) Cerite-(La), (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3[SiO3(OH)]4(OH)3, a new mineral species from the Khibina alkaline massif: Occurrence and crystal structure. The Canadian Mineralogist, 40 (4) 1177-1184 doi:10.2113/gscanmin.40.4.1177
Classification of Ferricerite-(LaCa)
9.AG.20
9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Fecrt-La | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Ferricerite-(LaCa)
Vitreous
Transparency:
Translucent
Colour:
Light yellow to pinkish-brown
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
4.7 g/cm3 (Measured) 4.75 g/cm3 (Calculated)
Optical Data of Ferricerite-(LaCa)
Type:
Uniaxial (+)
RI values:
nω = 1.81 nε = 1.82
Max. Birefringence:
δ = 0.010
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic
Chemistry of Ferricerite-(LaCa)
Mindat Formula:
(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3
formerly given as: (La,Ce,Ca)9Fe3+(SiO4)3(SiO3OH)4(OH)3
formerly given as: (La,Ce,Ca)9Fe3+(SiO4)3(SiO3OH)4(OH)3
Element Weights:
Crystallography of Ferricerite-(LaCa)
Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
R3c
Cell Parameters:
a = 10.7493 Å, c = 38.318 Å
Ratio:
a:c = 1 : 3.565
Unit Cell V:
3834.4 ų
Z:
6
Morphology:
{102} and {001}, habit equant to tabular on {001}.
Twinning:
None mentioned.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.53 Å | (26) |
| 3.47 Å | (40) |
| 3.31 Å | (38) |
| 3.10 Å | (25) |
| 2.958 Å | (100) |
| 2.833 Å | (37) |
| 2.790 Å | (24) |
| 2.689 Å | (34) |
| 1.949 Å | (34) |
Reference:
Pakhomovsky, Y. A., Men'shikov, Y. P., Yakovenchuk, V. N., Ivanyuk, G. Yu., Krivovichev, S. V., Burns, P. C. (2002) Cerite-(La), (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3[SiO3(OH)]4(OH)3, a new mineral species from the Khibina alkaline massif: Occurrence and crystal structure. The Canadian Mineralogist, 40 (4) 1177-1184 doi:10.2113/gscanmin.40.4.1177
Type Occurrence of Ferricerite-(LaCa)
Co-Type Localities:
General Appearance of Type Material:
Porous pseudomorphs up to 7cm long after unidentified hexagonal prismatic mineral (Belovite-(Ce) ?). Framework-like aggregates of crystals up to 2mm within these pseudomorphs.
Place of Conservation of Type Material:
Mining Museum of the St. Petersburg Mining Institute (Technical University), St. Petersburg, Russia
Mineralogical Museum of the St. Petersburg State University, Russia.
Geological and Mineralogical Museum of the Geological Institute of the Kola Science Centre, Apatity, Russia.
Mineralogical Museum of the St. Petersburg State University, Russia.
Geological and Mineralogical Museum of the Geological Institute of the Kola Science Centre, Apatity, Russia.
Geological Setting of Type Material:
In an aegirine-natrolite-microcline vein in foyaite.
Associated Minerals at Type Locality:
Reference:
Pakhomovsky, Y. A., Men'shikov, Y. P., Yakovenchuk, V. N., Ivanyuk, G. Yu., Krivovichev, S. V., Burns, P. C. (2002) Cerite-(La), (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3[SiO3(OH)]4(OH)3, a new mineral species from the Khibina alkaline massif: Occurrence and crystal structure. The Canadian Mineralogist, 40 (4) 1177-1184 doi:10.2113/gscanmin.40.4.1177
Synonyms of Ferricerite-(LaCa)
Other Language Names for Ferricerite-(LaCa)
Dutch:Ferriceriet-(LaCa)
German:Ferricerit-(LaCa)
Cerit-(La)
Cerit-(La)
Russian:Церит-(La)
Simplified Chinese:镧硅铈石
Traditional Chinese:鑭矽鈰石
Relationship of Ferricerite-(LaCa) to other Species
Member of:
Other Members of Cerite Subgroup:
| Aluminocerite-(CeCa) | (Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4(OH)3 | Trig. 3m : R3c |
| Cerite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 | Trig. 3m : R3c |
Common Associates
Associations Based on Photo Data:
| 1 photo of Ferricerite-(LaCa) associated with Ancylite-(Ce) | CeSr(CO3)2(OH) · H2O |
Related Minerals - Strunz-mindat Grouping
| 9.AG. | Aluminotaipingite-(CeCa) | (Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4F3 |
| 9.AG. | 'Ivanyukite-Na-T' | Na2Ti4(SiO4)3(OH)O3 · 7H2O |
| 9.AG. | 'Ivanyukite-Na-C' | Na2Ti4(SiO4)3(OH)2O2 · 6H2O |
| 9.AG. | Edgrewite | Ca9(SiO4)4F2 |
| 9.AG.02 | Gatedalite | ZrMn2+2Mn3+4SiO12 |
| 9.AG.05 | Abswurmbachite | CuMn3+6(SiO4)O8 |
| 9.AG.05 | Neltnerite | CaMn3+6(SiO4)O8 |
| 9.AG.05 | Skogbyite | Zr(Mg2Mn3+4)SiO12 |
| 9.AG.05 | Braunite | Mn2+Mn3+6(SiO4)O8 |
| 9.AG.05 | 'Braunite-II' | Ca(Mn3+,Fe)14(SiO4)O20 |
| 9.AG.10 | Långbanite | Mn2+4Mn3+9Sb5+O16(SiO4)2 |
| 9.AG.12 | Taipingite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3[SiO3(OH)]4F3 |
| 9.AG.15 | Żabińskiite | Ca[Al0.5(Ta,Nb)0.5)]O(SiO4) |
| 9.AG.15 | Titanite | CaTiO(SiO4) |
| 9.AG.15 | Vanadomalayaite | CaVO(SiO4) |
| 9.AG.15 | Natrotitanite | (Na0.5Y0.5)TiO(SiO4) |
| 9.AG.15 | Malayaite | CaSnO(SiO4) |
| 9.AG.20 | Aluminocerite-(CeCa) | (Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4(OH)3 |
| 9.AG.20 | Cerite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 |
| 9.AG.20 | Nipeiite-(Ce) | Ce9Fe3+(SiO4)6[SiO3(OH)](OH)3 |
| 9.AG.25 | 'Yftisite-(Y)' | (Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6 |
| 9.AG.25 | Mieite-(Y) | Y4Ti(SiO4)2O[F,(OH)]6 |
| 9.AG.25 | Trimounsite-(Y) | Y2Ti2(SiO4)O5 |
| 9.AG.30 | Sitinakite | KNa2Ti4(SiO4)2O5(OH) · 4H2O |
| 9.AG.35 | Kittatinnyite | Ca2Mn2Mn(SiO4)2(OH)4 · 9H2O |
| 9.AG.40b | Paranatisite | Na2Ti(SiO4)O |
| 9.AG.40a | Natisite | Na2Ti(SiO4)O |
| 9.AG.45 | Törnebohmite-(Ce) | Ce2Al(SiO4)2(OH) |
| 9.AG.45 | Törnebohmite-(La) | La2Al(SiO4)2(OH) |
| 9.AG.50 | Ivanyukite-Na | Na2Ti4(SiO4)3(OH)2O2 · 6H2O |
| 9.AG.50 | Ivanyukite-K | K2Ti4(SiO4)3(OH)2O2 · 9H2O |
| 9.AG.50 | Ivanyukite-Cu | CuTi4(SiO4)3(OH)2O2 · 7H2O |
| 9.AG.50 | Kuliokite-(Y) | Y4Al(SiO4)2(OH)2F5 |
| 9.AG.50 | Hydroxyledgrewite | Ca9(SiO4)4(OH)2 |
| 9.AG.52 | Ulfanderssonite-(Ce) | (Ce15Ca)Σ16Mg2(SiO4)10(SiO3OH)(OH,F)5Cl3 |
| 9.AG.55 | Chantalite | CaAl2(SiO4)(OH)4 |
| 9.AG.60 | Vuagnatite | CaAl(SiO4)(OH) |
| 9.AG.60 | Mozartite | CaMn3+(SiO4)(OH) |
| 9.AG.65 | Hatrurite | Ca3(SiO4)O |
| 9.AG.70 | Jasmundite | Ca11(SiO4)4O2S |
| 9.AG.75 | Afwillite | Ca3[SiO4][SiO2(OH)2] · 2H2O |
| 9.AG.80 | Bultfonteinite | Ca2(HSiO4)F · H2O |
| 9.AG.85 | Zoltaiite | BaV4+2V3+12(SiO4)2O19 |
| 9.AG.90 | Tranquillityite | (Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12 |
Other Information
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 Ferricerite-(LaCa)
mindat.org URL:
https://www.mindat.org/min-26408.html
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References for Ferricerite-(LaCa)
Reference List:
Pakhomovsky, Y. A., Men'shikov, Y. P., Yakovenchuk, V. N., Ivanyuk, G. Yu., Krivovichev, S. V., Burns, P. C. (2002) Cerite-(La), (La,Ce,Ca)9(Fe,Ca,Mg)(SiO4)3[SiO3(OH)]4(OH)3, a new mineral species from the Khibina alkaline massif: Occurrence and crystal structure. The Canadian Mineralogist, 40 (4) 1177-1184 doi:10.2113/gscanmin.40.4.1177
Localities for Ferricerite-(LaCa)
Showing 5 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Brazil | |
| Azzi (2019) |
Madagascar | |
| G. Estrade/University of Toulouse ... |
Russia (TL) | |
| Pakhomovsky et al. (2002) |
| - (2007) |
South Africa | |
| Atanasova et al. (2016) |
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Hackman Valley, Yukspor Mountain, Murmansk Oblast, Russia