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Betpakdalite-CaCa

A valid IMA mineral species
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About Betpakdalite-CaCaHide

05746670015709194363235.jpg
Betpak-Dala desert, Kazakhstan
Formula:
[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]
Colour:
Lemon-yellow with greenish tint
Lustre:
Dull
Hardness:
3
Specific Gravity:
2.98 - 3.05
Crystal System:
Monoclinic
Name:
Named betpakdalite by L.P. Ermilova and V.M. Senderova in 1961 after the Betpakdala (Bet-Pak-Dal) Desert, Kazakhstan that includes the type locality.

It was redefined in 2010 (IMA 10-E) and renamed betpakdalite-CaCa.
This page provides mineralogical data about Betpakdalite-CaCa.


Unique IdentifiersHide

Mindat ID:
651
Long-form identifier:
mindat:1:1:651:4
GUID
(UUID V4):
0b07f472-53fa-4ea8-a801-22d2e942cf94

IMA Classification of Betpakdalite-CaCaHide

Approved
IMA status notes:
Renamed by the IMA
First published:
1961
Approval history:
Renamed by IMA: 2010

Classification of Betpakdalite-CaCaHide

8.DM.15

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
M : With large and medium-sized cations, (OH, etc.):RO4 > 2:1
49.4.1.1

49 : HYDRATED MOLYBDATES AND TUNGSTATES
4 : Compound Molybdates and Tungstates
22.5.8

22 : Phosphates, Arsenates or Vanadates with other Anions
5 : Phosphates, arsenates or vanadates with chromate, molybdate, niobate or tantalate

Mineral SymbolsHide

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

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

Physical Properties of Betpakdalite-CaCaHide

Transparency:
Transparent
Colour:
Lemon-yellow with greenish tint
Hardness:
Cleavage:
Very Good
{001}
Density:
2.98 - 3.05 g/cm3 (Measured)    2.913 g/cm3 (Calculated)

Optical Data of Betpakdalite-CaCaHide

Type:
Biaxial (+)
RI values:
nα = 1.782 - 1.809 nβ = 1.797 - 1.821 nγ = 1.850 - 1.857
2V:
Measured: 60° , Calculated: 53° to 88°
Max Birefringence:
δ = 0.068
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
extreme, inclined
Optical Extinction:
Y = b; X ∧ c = 12°.
Pleochroism:
Visible
Comments:
X = pale yellow, Y = greenish yellow, Z= bluish.
Comments:
Absorption: Z > Y > X.

Chemistry of Betpakdalite-CaCaHide

Mindat Formula:
[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]

Crystallography of Betpakdalite-CaCaHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 19.507(2) Å, b = 11.0768(9) Å, c = 15.2618(19) Å
β = 131.2618(5)°
Ratio:
a:b:c = 1.761 : 1 : 1.378
Unit Cell V:
2470.3 ų
Comment:
Cell parameters from SCXRD (Kampf et al 2012)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005591Betpakdalite-CaCaCooper M A, Hawthorne F C (1999) The crystal structure of betpakdalite, and a new chemical formula: {Mg(H2O)6}Ca2(H2O)13[Mo8As2Fe3O36(OH)](H2O)4 The Canadian Mineralogist 37 61-6619990293
0014792Betpakdalite-CaCaSchmetzer K, Nuber B, Tremmel G (1984) Betpakdalite from Tsumeb, Namibia: mineralogy, crystal chemistry and structure Neues Jahrbuch fur Mineralogie, Monatshefte 1984 393-4031984Tsumeb, Namibia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.75 Å(100)
3.63 Å(90)
1.532 Å(80)
1.480 Å(80)
2.95 Å(70)
1.723 Å(70)
1.191 Å(70)
1.024 Å(70)
Comments:
Kara-Oba deposit, Kazakhstan. Data from Ermilova and Senderova (1961).

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of Betpakdalite-CaCaHide

General Appearance of Type Material:
Powdery finely-crystalline aggregates, individual crystals being 0.005 to 0.025 mm.
Place of Conservation of Type Material:
No designated type material.
Geological Setting of Type Material:
Oxidation zone of a wolframite deposit, that consists of early quartz-wolframite-veins and later quartz-huebnerite-pyrite-arsenopyrite veins.
Associated Minerals at Type Locality:

Other Language Names for Betpakdalite-CaCaHide

Relationship of Betpakdalite-CaCa to other SpeciesHide

Other Members of this group:
Betpakdalite-CaMg[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)] Mon. 2/m : B2/m
Betpakdalite-FeFe[Fe3+2 (H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3O37]Mon. 2/m : B2/m
Betpakdalite-NaCa[Na2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O34(OH)3]Mon. 2/m : B2/m
Betpakdalite-NaNa[Na2(H2O)16Na(H2O)6][Mo8As2Fe3+3O33(OH)4] Mon. 2/m : B2/m

Common AssociatesHide

Associated Minerals Based on Photo Data:
9 photos of Betpakdalite-CaCa associated with ScoroditeFe3+AsO4 · 2H2O
6 photos of Betpakdalite-CaCa associated with MolybdeniteMoS2
3 photos of Betpakdalite-CaCa associated with FerrimolybditeFe2(MoO4)3 · nH2O
2 photos of Betpakdalite-CaCa associated with ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2O
1 photo of Betpakdalite-CaCa associated with CalciteCaCO3
1 photo of Betpakdalite-CaCa associated with PharmacosideriteKFe3+4(AsO4)3(OH)4 · 6-7H2O
1 photo of Betpakdalite-CaCa associated with QuartzSiO2
1 photo of Betpakdalite-CaCa associated with AnglesitePbSO4
1 photo of Betpakdalite-CaCa associated with ZeuneriteCu(UO2)2(AsO4)2 · 12H2O

Related Minerals - Strunz-mindat GroupingHide

8.DM.Betpakdalite-CaMg[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)] Mon. 2/m : B2/m
8.DM.Betpakdalite-FeFe[Fe3+2 (H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3O37]Mon. 2/m : B2/m
8.DM.Penriceite[Mg(H2O)6][Na(H2O)2Al3(PO4)2F6] · H2OMon. 2/m : P21/b
8.DM.ElliottiteNaMgAl3(PO4)2F6 · 9H2OMon. 2/m : B2/m
8.DM.Sarrochite[Ca4(H2O)38][Mo8P2Fe3+3O37(OH)]Trig. 3m (3 2/m) : P3m1
8.DM.TomsquarryiteNaMgAl3(PO4)2(OH)6 · 8H2OTrig. 3m (3 2/m) : R3m
8.DM.Chinnerite[Mg(H2O)6]Na(H2O)2Al3(PO4)2F6Mon. 2/m : P2/m
8.DM.05MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m : P21/m
8.DM.05EsperanzaiteNaCa2Al2(AsO4)2(OH)F4 · 2H2OMon. 2/m : P21/m
8.DM.10TyroliteCa2Cu9(AsO4)4(CO3)(OH)8 · 11H2OMon. 2/m
8.DM.10TangdaniteCa2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2O Mon. 2/m : B2/b
8.DM.15Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]Mon. 2/m : B2/m
8.DM.15Betpakdalite-NaCa[Na2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O34(OH)3]Mon. 2/m : B2/m
8.DM.20Phosphovanadylite-BaBa[V4+4P2O8(OH)8] · 12H2OIso. 4 3m : I4 3m
8.DM.20Phosphovanadylite-CaCa[V4+4P2O12(OH)4] · 12H2O Iso. 4 3m : I4 3m
8.DM.25YukoniteCa3Fe3+(AsO4)2(OH)3 · 5H2OOrth. mm2
8.DM.30UdumineliteCa3Al8(PO4)2O12 · 2H2O
8.DM.35Aldermanite[Mg(H2O)6][Na(H2O)2Al3(PO4)2(OH,F)6] · H2O Mon. 2/m : P21/b
8.DM.35AzovskiteFe3+3(PO4)(OH)6 or near
8.DM.35DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmedAmor.
8.DM.40Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2OOrth. mmm (2/m 2/m 2/m)
8.DM.55TapiaiteCa5Al2(AsO4)4(OH)4 · 12H2OMon.
8.DM.60Alcantarillaite[Fe3+0.5(H2O)4][CaAs3+2(Fe3+2.5W6+0.5)(AsO4)2O7]Orth. mmm (2/m 2/m 2/m) : Imma

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 Betpakdalite-CaCaHide

References for Betpakdalite-CaCaHide

Reference List:

Localities for Betpakdalite-CaCaHide

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.

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.
Australia
 
  • New South Wales
    • Gough Co.
      • Elsmore
Williams et al. (2005)
Chile
 
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga mining district
analysed with Edx (by dr. Jochen Schlüter) +1 other reference
China
 
  • Hebei
    • Zhangjiakou
      • Guyuan County
Dahlkamp (2009)
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
      • Krásno
Sejkora et al. (2006)
  • Ústí nad Labem Region
    • Teplice District
      • Krupka
        • Knöttel area
Sejkora (1998)
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Bellac
        • Vaulry
Tschernich et al. (1992)
          • Vaulry Mines
Queneau (n.d.) +1 other reference
Germany
 
  • Saxony
    • Sächsische Schweiz-Osterzgebirge
      • Dippoldiswalde
Witzke (2023)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
Rieck et al. (2020)
          • Plaka
            • Plaka mines
Rieck et al. (2020)
Italy
 
  • Lombardy
    • Varese Province
      • Cuasso al Monte
        • Cuasso al Piano
Gentile et al. (2023)
  • Tuscany
    • Livorno Province
      • Livorno
        • Valle Benedetta
Marco Bonifazi collection
Japan
 
  • Hiroshima Prefecture
    • Inland Sea (Setonaikai)
      • Ikuchi Island
The Mineral Species of Japan (5th ed)
Kazakhstan (TL)
 
  • Jambyl Region
    • Moiynkum District
Ermilova et al. (1961) +1 other reference
  • Jetisu Region
    • Alakol District
Pavel.M. Kartashov (n.d.)
Mongolia
 
  • Khentii Province
    • Tsenkhermandal District
Kampf et al. (2012)
Namibia
 
  • Oshikoto Region
    • Tsumeb
Schmetzer
Norway
 
  • Nordland
    • Hamarøy
      • Drag
Husdal (2011) +1 other reference
USA
 
  • Utah
    • Tooele County
      • Gold Hill Mining District (Clifton Mining District)
Kampf et al. (2012)
 
矿物 and/or 产地  
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