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Smirnovskite

A valid IMA mineral species - grandfathered - questionable
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03441580017272470929233.jpg
Smirnovskite, etc.

Etyka, Baleysky District, Zabaykalsky Krai, Russia
08306440017272007854874.jpg
Smirnovskite, etc.

Etyka, Baleysky District, Zabaykalsky Krai, Russia
08614360017272089344466.jpg
Smirnovskite, etc.

Etyka, Baleysky District, Zabaykalsky Krai, Russia
08306440017272007854874.jpg
Smirnovskite, etc.

Etyka, Baleysky District, Zabaykalsky Krai, Russia
08614360017272089344466.jpg
Smirnovskite, etc.

Etyka, Baleysky District, Zabaykalsky Krai, Russia
08306440017272007854874.jpg
Smirnovskite, etc.

Etyka, Baleysky District, Zabaykalsky Krai, Russia
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About SmirnovskiteHide

Formula:
(Th,Ca)PO4 · nH2O
Crystal System:
Hexagonal
A dubious species described by Grigoriev and Dolomanova in 1957. Possibly the same as grayite or brockite.

Originally reported from Etyka tin deposit in Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia.


Unique IdentifiersHide

Mindat ID:
27160
Long-form identifier:
mindat:1:1:27160:4

IMA Classification of SmirnovskiteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959), Questionable
IMA Formula:
(Th4+,Ca)PO4·nH2O

Classification of SmirnovskiteHide

Strunz-mindat (2026):
8.CJ.45

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
SnvIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of SmirnovskiteHide

Mindat Formula:
(Th,Ca)PO4 · nH2O
Element Weights:
Element% weight
Th67.253 %
O23.186 %
P8.977 %
H0.584 %

Calculated from ideal end-member formula.
Th
O
P
H
Elements listed:
Ca, H, O, P, Th - search for minerals with similar chemistry

Crystallography of SmirnovskiteHide

Crystal System:
Hexagonal
Class (H-M):
622 - Trapezohedral
Space Group:
P6222
Cell Parameters:
a = 7.12 Å, b = 7.12 Å, c = 6.47 Å
α = 90°, β = 90°, γ = 120°
Ratio:
a:b:c = 1 : 1 : 0.909
Unit Cell V:
284.05 ų (Calculated from Unit Cell)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]

Other Language Names for SmirnovskiteHide

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Smirnovskite associated with GalenaPbS
2 photos of Smirnovskite associated with 'Zinnwaldite'
2 photos of Smirnovskite associated with 'Amazonite'K(AlSi3O8)
1 photo of Smirnovskite associated with MicroclineK(AlSi3O8)

Related Minerals - Strunz-mindat GroupingHide

8.CJ.AirditeSr(V4+O)2(PO4)2 · 4H2OMon. m : Bb
8.CJ.DobšináiteCa2Ca(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CJ.SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2OMon. 2/m : B2/b
8.CJ.CaesiumpharmacosideriteCsFe3+4[(AsO4)3(OH)4] · 4H2OIso. 43m : P43m
8.CJ.JeankempiteCa5(AsO4)2(HAsO4)2 · 7H2OTric. 1 : P1
8.CJ.05Stercorite(NH4)Na(PO3OH) · 4H2OTric. 1 : P1
8.CJ.10Swaknoite(NH4)2Ca(PO3OH)2 · H2OOrth.
8.CJ.10Mundrabillaite(NH4)2Ca(PO3OH)2 · H2OMon. m : Pm
8.CJ.15NabaphiteNaBaPO4 · 9H2OIso. 23 : P213
8.CJ.15NastrophiteNa(Sr,Ba)PO4 · 9H2OIso. 23 : P213
8.CJ.20HaidingeriteCaHAsO4 · H2OOrth. mmm(2/m2/m2/m) : Pbcn
8.CJ.25Rhabdophane-(Y)YPO4 · H2OHex. 622 : P6222
8.CJ.25VladimiriteCa4(AsO4)2(AsO3OH) · 4H2OMon. 2/m : P21/b
8.CJ.27'Churchite-(Dy)'(Dy,Sm,Gd,Nd)PO4 · 2H2OMon.
8.CJ.30FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CJ.35FulbrightiteCa(V4+O)2(As5+O4)2 · 4H2OTric. 1 : P1
8.CJ.35Machatschkiite(Ca,Na)6(AsO4)(HAsO4)3(PO4,SO4) · 15H2OTrig. 3m : R3c
8.CJ.40RauenthaliteCa3(AsO4)2 · 10H2OTric. 1 : P1
8.CJ.40PhaunouxiteCa3(AsO4)2 · 11H2OTric.
8.CJ.45Brockite(Ca,Th,Ce)PO4 · H2OHex. 622 : P6222
8.CJ.45Rhabdophane-(Ce)Ce(PO4) · 0.6H2OTrig. 32 : P3121
8.CJ.45Rhabdophane-(La)La(PO4) · H2OHex. 622 : P6222
8.CJ.45Rhabdophane-(Nd)Nd(PO4) · H2OHex. 622 : P6222
8.CJ.45Tristramite(Ca,U4+,Fe3+)(PO4,SO4) · 2H2OHex. 622 : P6222
8.CJ.45Grayite(Th,Pb,Ca)(PO4) · H2OHex. 622 : P6222
8.CJ.45ŠtěpiteU(AsO3OH)2 · 4H2O Tet. 4/mmm(4/m2/m2/m) : I41/acd
8.CJ.47VysokýiteU4+[AsO2(OH)2]4 · 4H2OTric. 1 : P1
8.CJ.50Churchite-(Y)Y(PO4) · 2H2OMon. 2/m : B2/b
8.CJ.50BrushiteCa(PO3OH) · 2H2OMon. m : Bb
8.CJ.50ArdealiteCa2(PO3OH)(SO4) · 4H2OMon. m : Bb
8.CJ.50PharmacoliteCa(HAsO4) · 2H2OMon. m
8.CJ.50'Churchite-(Nd)'Nd(PO4) · 2H2OMon.
8.CJ.55McneariteNaCa5(AsO4)(HAsO4)4 · 4H2OTric.
8.CJ.60DorfmaniteNa2(PO3OH) · 2H2OOrth. mmm(2/m2/m2/m) : Pbca
8.CJ.65SincositeCa(V4+O)2(PO4)2 · 4H2OTet. 4/mmm(4/m2/m2/m) : P42/nnm
8.CJ.65BariosincositeBa(V4+O)2(PO4)2 · 4H2OTet.
8.CJ.70CatalanoiteNa2(PO3OH) · 8H2OOrth. mmm(2/m2/m2/m) : Ibca
8.CJ.75GuériniteCa6(HAsO4)3(AsO4)2 · 10.5H2OMon. 2/m : P21/b
8.CJ.85Ningyoite(U,Ca,Ce)2(PO4)2 · 1-2H2OOrth.

RadioactivityHide

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 SmirnovskiteHide