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Caesiumpharmacosiderite

A valid IMA mineral species - pending publication
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05941670017271995668952.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
05691980017271995644137.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
08951040017271995626612.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
05941670017271995668952.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
05691980017271995644137.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
08951040017271995626612.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
05941670017271995668952.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
05691980017271995644137.jpg
Caesiumpharmacosiderite

Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
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About CaesiumpharmacosideriteHide

Unique combination of elements. First Cs-bearing arsenate mineral. Sixth natural crystalline oxysalt (discluding silicates) with species-defining Cs, the other species of this group being cesiodymite (sulphate), londonite, ramanite-(Cs) (borates), margaritasite (vanadate), and mccrillisite (phosphate).


Unique IdentifiersHide

Mindat ID:
46008
Long-form identifier:
mindat:1:1:46008:6

IMA Classification of CaesiumpharmacosideriteHide

IMA status:
Approved, Pending publication
IMA Formula:
CsFe3+4[(As5+O4)3(OH)4]·4H2O
Approval year:
2013

Classification of CaesiumpharmacosideriteHide

Strunz-mindat (2026):
8.CJ.

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

Chemistry of CaesiumpharmacosideriteHide

Mindat Formula:
CsFe3+4[(AsO4)3(OH)4] · 4H2O
Element Weights:
Element% weight
O35.043 %
As24.615 %
Fe24.463 %
Cs14.555 %
H1.325 %

Calculated from ideal end-member formula.
O
As
Fe
Cs
H
Elements listed:
As, Cs, Fe, H, O - search for minerals with similar chemistry

Crystallography of CaesiumpharmacosideriteHide

Crystal System:
Isometric
Class (H-M):
43m - Hextetrahedral
Space Group:
P43m
Setting:
P43m
Cell Parameters:
a = 7.9637(11) Å
Unit Cell V:
505.06 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.04 Å(100)
4.627 Å(23)
4.009 Å(17)
3.270 Å(40)
2.831 Å(31)
2.532 Å(22)
2.415 Å(22)
1.790 Å(14)
Locality:
Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
Comments:
From Type Description.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47d : [Arsenates, antimonates, selenates, bismuthinates]

Type Occurrence of CaesiumpharmacosideriteHide

Co-Type Localities:
ⓘ Puna Plateau, Tuzgle volcano, Susques, Susques Department, Jujuy Province, Argentina
ⓘ Wendy pit, Tambo Mine, Vicuña, Elqui Province, Coquimbo, Chile
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue number 63205, and Museum Victoria, Melbourne, Victoria, Australia, catalogue numbers M52762 and M52763

Synonyms of CaesiumpharmacosideriteHide

Other Language Names for CaesiumpharmacosideriteHide

Relationship of Caesiumpharmacosiderite to other SpeciesHide

Member of:
Pharmacosiderite Group > Pharmacosiderite Supergroup
Other Members of Pharmacosiderite Group:
BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2OTet. 42m : P42m
Hydroniumpharmacosiderite(H3O)Fe3+4(AsO4)3(OH)4 · 4H2OIso. 43m : P43m
NatropharmacosideriteNaFe3+4(AsO4)3(OH)4 · 4H2OIso. 43m : P43m
PharmacosideriteKFe3+4(AsO4)3(OH)4 · 6-7H2OIso. 43m : P43m
PlumbopharmacosideritePb0.5Fe3+4(AsO4)3(OH)4 · 5H2OIso. 43m : P43m
StrontiopharmacosideriteSr0.5Fe3+4[(AsO4)3(OH)4] · 4H2OTet. 42m : P42m
ThalliumpharmacosideriteTlFe3+4[(AsO4)3(OH)4] · 4H2OIso. 43m : F43m

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.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.45Smirnovskite(Th,Ca)PO4 · nH2OHex. 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.

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 CaesiumpharmacosideriteHide

References for CaesiumpharmacosideriteHide

Localities for CaesiumpharmacosideriteHide

Showing 2 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 (TL)
 
  • Jujuy Province
    • Susques Department
      • Susques
        • Tuzgle volcano
Williams et al. (2013) +1 other reference
Chile (TL)
 
  • Coquimbo
    • Elqui Province
      • Vicuña
        • Tambo Mine
Williams et al. (2013) +1 other reference
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