Whitecapsite (original) (raw)

A valid IMA mineral species

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About WhitecapsiteHide

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Formula:

H16Fe2+5Fe3+14Sb3+6(AsO4)18O16 · 120H2O

Colour:

Bright orange to golden-brownish orange

Name:

Named for the type locality, White Caps mine, Nye Co., Nevada

Unique combination of elements. Forms well-shaped hexagonal prismatic crystals terminated with bipyramidal faces.

The structure is based on the complex heteropolyhedral [(□,Fe2+)6Fe3+7Sb3O8(AsO4)9(H2O)30] cluster, which central part is the Fe3+O6 trigonal prism. The complex clusters are linked only via hydrogen bonds to water molecules residing in the interstitial space.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:43221:4

3d85afc4-7485-41a5-8500-d5173a9f8a86

IMA Classification of WhitecapsiteHide

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IMA Formula:

H16Fe2+5Fe3+14Sb3+6(AsO4)18O16 · 120H2O

Classification of WhitecapsiteHide

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8.DC.70

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1

Mineral SymbolsHide

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

Symbol Source Reference
Wcp 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 WhitecapsiteHide

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Colour:

Bright orange to golden-brownish orange

Density:

2.30 g/cm3 (Measured) 2.297 g/cm3 (Calculated)

Optical Data of WhitecapsiteHide

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RI values:

_n_ω = 1.590(2) _n_ε = 1.603(3)

δ = 0.013

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Chemistry of WhitecapsiteHide

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Mindat Formula:

H16Fe2+5Fe3+14Sb3+6(AsO4)18O16 · 120H2O

Crystallography of WhitecapsiteHide

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Class (H-M):

6/m - Dipyramidal

Cell Parameters:

a = 16.0916(8) Å, c = 21.7127(9) Å

Morphology:

Hexagonal prismatic crystals terminated with bipyramidal faces (forms: {110} and {111})

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
13.99 Å (34)
11.73 Å (100)
5.267 Å (6)
3.644 Å (4)
2.999 Å (8)
2.757 Å (4)
2.648 Å (5)

Geological EnvironmentHide

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Type Occurrence of WhitecapsiteHide

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Place of Conservation of Type Material:

Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia

Geological Setting of Type Material:

Found in the oxidation zone of the White Caps gold deposit.

Associated Minerals at Type Locality:

Synonyms of WhitecapsiteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

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8.DC. Ianbruceite Zn2(AsO4)(OH) · 3H2O Mon. 2/m : _P_21/b
8.DC. Césarferreiraite Fe2+ Fe3+2(AsO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC. Ferrivauxite Fe3+Al2(PO4)2(OH)3 · 5H2O Tric. 1 : _P_1
8.DC.05 Nissonite Cu2Mg2(PO4)2(OH)2 · 5H2O Mon. 2/m : _B_2/b
8.DC.07 Euchroite Cu2(AsO4)(OH) · 3H2O Orth. 222 : _P_212121
8.DC.10 Legrandite Zn2(AsO4)(OH) · H2O Mon. 2/m : _P_21/b
8.DC.12 Strashimirite Cu8(AsO4)4(OH)4 · 5H2O Mon.
8.DC.15 Arthurite CuFe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Earlshannonite Mn2+Fe3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Ojuelaite ZnFe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Whitmoreite Fe2+Fe3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Cobaltarthurite CoFe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Bendadaite Fe2+Fe3+2(AsO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 Kunatite CuFe3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_21/b
8.DC.15 UM2006-27-PO:FeHZn ZnFe3+2(PO4)2(OH)2 · 4H2O Mon.
8.DC.15 UKI-2006-(PO:AlCuFeH) Fe2+Al3+2(PO4)2(OH)2 · 4H2O
8.DC.17 Kleemanite ZnAl2(PO4)2(OH)2 · 3H2O Mon.
8.DC.20 Bermanite Mn2+Mn3+2(PO4)2(OH)2 · 4H2O Mon. 2/m : _P_2/b
8.DC.20 Coralloite Mn2+Mn3+2(AsO4)2(OH)2 · 4H2O Tric. 1 : _P_1
8.DC.20 Magnesiobermanite MgMn3+2(PO4)2(OH)2 · 4H2O Mon. 2 : _P_21
8.DC.22 Kovdorskite Mg2(PO4)(OH) · 3H2O Mon. 2/m : _P_21/b
8.DC.25 Ferristrunzite Fe3+Fe3+2(PO4)2(OH)3 · 5H2O Tric.
8.DC.25 Ferrostrunzite Fe2+Fe3+2(PO4)2(OH)2 · 6H2O Tric.
8.DC.25 Metavauxite Fe2+Al2(PO4)2(OH)2 · 8H2O Mon. 2/m : _P_21/b
8.DC.25 Metavivianite Fe2+Fe3+2(PO4)2(OH)2 · 6H2O Tric. 1 : _P_1
8.DC.25 Strunzite Mn2+Fe3+2(PO4)2(OH)2 · 6H2O Tric. 1 : _P_1
8.DC.25 Zincostrunzite ZnFe3+2(PO4)2(OH)2 · 6.5H2O Tric. 1 : _P_1
8.DC.27 Beraunite Fe3+6(PO4)4O(OH)4 · 6H2O Mon. m : B b
8.DC.27 Tvrdýite Fe2+Fe3+2 Al3(PO4)4(OH)5(H2O)4 · 2H2O Mon. 2/m : _B_2/b
8.DC.27 Zincoberaunite ZnFe3+5(PO4)4(OH)5 · 6H2O Mon. 2/m : _B_2/b
8.DC.30 Gordonite MgAl2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Laueite Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Mangangordonite Mn2+Al2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Paravauxite Fe2+Al2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Pseudolaueite Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Mon. 2/m : _P_21/b
8.DC.30 Sigloite Fe3+Al2(PO4)2(OH)3 · 7H2O Tric. 1 : _P_1
8.DC.30 Stewartite Mn2+Fe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Ushkovite MgFe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Ferrolaueite Fe2+Fe3+2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Kastningite (Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Maghrebite MgAl2(AsO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.30 Nordgauite MnAl2(PO4)2(F,OH)2 · 5H2O Tric. 1 : _P_1
8.DC.30 Kayrobertsonite [MnAl2(PO4)2(OH)2(H2O)4] · 2H2O Tric. 1 : _P_1
8.DC.30 Kummerite Mn2+Fe3+Al(PO4)2(OH)2 · 8H2O Tric. 1 : _P_1
8.DC.32 Tinticite Fe3+3(PO4)2(OH)3 · 3H2O Tric. 1 : _P_1
8.DC.32 Kamarizaite Fe3+3(AsO4)2(OH)3 · 3H2O Tric. 1 : _P_1
8.DC.35 Vauxite Fe2+Al2(PO4)2(OH)2 · 6H2O Tric. 1 : _P_1
8.DC.37 Vantasselite Al4(PO4)3(OH)3 · 9H2O Orth.
8.DC.40 Cacoxenite Fe3+24AlO6(PO4)17(OH)12 · 75H2O Hex. 6/m : _P_63/m
8.DC.45 Gormanite (Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O Tric.
8.DC.45 Souzalite (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O Tric. 1
8.DC.47 Kingite Al3(PO4)2F2(OH) · 7H2O Tric.
8.DC.50 Wavellite Al3(PO4)2(OH,F)3 · 5H2O Orth. m m m _(_2/_m_2/_m_2/m )
8.DC.50 Allanpringite Fe3+3(PO4)2(OH)3 · 5H2O Mon. 2/m : _P_21/m
8.DC.50 Fluorwavellite Al3(PO4)2(OH)2F · 5H2O Orth. m m m _(_2/_m_2/_m_2/m )
8.DC.52 Kribergite Al5(PO4)3(SO4)(OH)4 · 4H2O Tric. 1 : _P_1
8.DC.55 Mapimite Zn2Fe3+3(AsO4)3(OH)4 · 10H2O Mon. m : B m
8.DC.57 Ogdensburgite Ca2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2O Orth. m m m _(_2/_m_2/_m_2/m ) : C m m m
8.DC.60 Nevadaite (Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2O Orth. m m m _(_2/_m_2/_m_2/m )
8.DC.60 Cloncurryite Cu0.5(VO)0.5Al2(PO4)2F2 · 5H2O Mon. 2/m : _P_21/b
8.DC.62 Kenngottite Mn2+3Fe3+4(PO4)4(OH)6(H2O)2 Mon. 2/m : _P_2/b
8.DC.67 Molinelloite Cu(H2O)(OH)V4+O(V5+O4) Tric. 1 : _P_1
8.DC.75 Heimite PbCu2(AsO4)(OH)3 · 2H2O Mon. 2/m
8.DC.80 Lednevite Cu[PO3(OH)] · H2O Mon. 2/m : _P_21/b

Other InformationHide

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IR Spectrum:

confirms the presence of H+·nH2O complex cations and absence of OH groups (also confirmed by Raman spectroscopy)

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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References for WhitecapsiteHide

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Reference List:

Pekov, I.V., Zubkova, N.V., Goettlicher, J., Yapaskurt, V.O., Chukanov, N.V., Lykova, I.S., Belakovskiy, D.I., Jensen, M.C., Leising, J.F., Nikischer, A.J., Pushcharovsky D.Yu. (2014) Whitecapsite, a new hydrous iron and trivalent antimony arsenate mineral from the White Caps mine, Nevada, USA. European Journal of Mineralogy: 26: 577-587.

Localities for WhitecapsiteHide

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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

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- 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.

USA (TL)
Nevada Nye County Toquima Range Manhattan Mining District Manhattan White Caps Mine (TL) Pekov (2012) +1 other reference