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Betpakdalite-FeFe

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About Betpakdalite-FeFeHide

Formula:
[Fe3+2 (H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3 O37]
Crystal System:
Monoclinic
This page provides mineralogical data about Betpakdalite-FeFe.


Classification of Betpakdalite-FeFeHide

Approved, Pending publication
Approval Year:
2017
8.DM.

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

Chemical Properties of Betpakdalite-FeFeHide

Formula:
[Fe3+2 (H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3 O37]
IMA Formula:
[Fe3+2(H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3O37]

Crystallography of Betpakdalite-FeFeHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 19.51(1) Å, b = 11.131(5) Å, c = 15.37(1) Å
β = 130.93(5)°
Ratio:
a:b:c = 1.753 : 1 : 1.381
Unit Cell V:
2,521.77 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.689(10)
9.079(100)
7.329(19)
3.679(15)
3.160(15)
3.051(24)
2.791(17)
2.662(12)
Comments:
From Type Description.

Type Occurrence of Betpakdalite-FeFeHide

Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of theNatural HistoryMuseumof Los Angeles County, Los Angeles, USA, catalogue number 66560, and the Museums Victoria, Melbourne, Australia, registration number M53809

Synonyms of Betpakdalite-FeFeHide

Relationship of Betpakdalite-FeFe to other SpeciesHide

Other Members of this group:
Betpakdalite-CaCa[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]Mon. 2/m : B2/m
Betpakdalite-CaMg[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)] 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

Related Minerals - Nickel-Strunz GroupingHide

8.DM.Betpakdalite-CaMg[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)] Mon. 2/m : B2/m
8.DM.05MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m
8.DM.05EsperanzaiteNaCa2Al2(AsO4)2(OH)F4 · 2H2OMon.
8.DM.10ClinotyroliteCa2Cu9(AsO4,SO4)4(OH,O)10 · 10H2OMon.
8.DM.10TyroliteCa2Cu9(AsO4)4(CO3)(OH)8 · 11H2OMon. 2/m
8.DM.15Betpakdalite-CaCa[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]Mon. 2/m : B2/m
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.
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.35DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmed · Amor.
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)

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.

References for Betpakdalite-FeFeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mills, S.J., Kampf, A.R., Sutton, P. and Birch, W.D. (2017) Betpakdalite-FeFe, IMA 2017-011. CNMNC Newsletter No. 37, June 2017, page 740; Mineralogical Magazine: 81: 737–742.

Internet Links for Betpakdalite-FeFeHide

Localities for Betpakdalite-FeFeHide

ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia (TL)
 
  • Victoria
    • Central Goldfields Shire
      • Moliagul
Mills, S.J., Kampf, A.R., Sutton, P. and Birch, W.D. (2017) Betpakdalite-FeFe, IMA 2017-011. CNMNC Newsletter No. 37, June 2017, page 740; Mineralogical Magazine, 81, 737–742.
Mineral and/or Locality  
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