Whiteite-(CaFeMg) (original) (raw)

A valid IMA mineral species

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About Whiteite-(CaFeMg)Hide

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Formula:

{Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O

Colour:

Pink-brown, light brown

Crystal System:

Monoclinic

Name:

Named after John Sampson White, Jr. (30 September 1933, Monessen, Pennsylvania, USA -), associate curator of minerals, Smithsonian Institution; founder, editor, and publisher (1970-1982) of the Mineralogical Record. It was named at the same time as whiteite-(MnFeMg), where the suffixes indicate the dominant cations in the X, M(1), and M(2) structural positions.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:4277:8

e8c7aefe-ccd9-42e5-80ea-562945a1d061

IMA Classification of Whiteite-(CaFeMg)Hide

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IMA Formula:

CaFe2+Mg2Al2(PO4)4(OH)2 · 8H2O

Approval history:

Approved as a new species by IMA in 1975.

Type description reference:

Classification of Whiteite-(CaFeMg)Hide

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8.DH.15

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

42.11.3.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O

19.12.60

19 : Phosphates
12 : Phosphates of Mn

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
Wt-CaFeMg 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 Whiteite-(CaFeMg)Hide

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Colour:

Pink-brown, light brown

Cleavage:

Perfect
Good to perfect, {001}

Density:

2.58(1) g/cm3 (Measured) 2.51 g/cm3 (Calculated)

Optical Data of Whiteite-(CaFeMg)Hide

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RI values:

_n_α = 1.580 _n_β = 1.585 _n_γ = 1.590

2V:

Measured: 40° to 50°, Calculated: 88°

δ = 0.010

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

Chemistry of Whiteite-(CaFeMg)Hide

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Mindat Formula:

{Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O

Crystallography of Whiteite-(CaFeMg)Hide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 14.87(2) Å, b = 6.95(3) Å, c = 10.13 Å
β = 112.8(3)°

Ratio:

a:b:c = 2.14 : 1 : 1.458

Unit Cell V:

965.10 ų (Calculated from Unit Cell)

Morphology:

Warped crystals showing the forms c{001}and n{111}.

Twinning:

Twinned by reflection on {001}, imparting a pseudo-orthorhombic appearance to the composite.

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
9.304 Å (100)
2.789 Å (65)
4.660 Å (30)
4.849 Å (20)
2.946 Å (20)
2.542 Å (20)
1.936 Å (20)

Geological EnvironmentHide

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Type Occurrence of Whiteite-(CaFeMg)Hide

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General Appearance of Type Material:

Pale tan to brown bunched aggregates of small (1-5 mm) tabular crystals to large (up to 2 cm) thick tabular canoe-shaped individuals.

Place of Conservation of Type Material:

National School of Mines, Paris, France.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 123013.

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Moore, P.B., Ito, J. (1978) I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited. Mineralogical Magazine: 42: 309-323.

Synonyms of Whiteite-(CaFeMg)Hide

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Other Language Names for Whiteite-(CaFeMg)Hide

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Relationship of Whiteite-(CaFeMg) to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

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8.DH. Ferroberaunite Fe2+Fe3+5(PO4)4(OH)5 · 6H2O Mon. 2/m : _B_2/b
8.DH. Rowleyite [Na(NH4,K)9Cl4][V5+,4+2(P,As)O8]6 · n[H2O,Na,NH4,K,Cl] Iso.
8.DH. Ammoniotinsleyite (NH4)Al2(PO4)2(OH) · 2H2O Mon. 2/m : _P_21/m
8.DH. Thebaite-(NH4) (NH4)3Al(C2O4)(PO3OH)2(H2O) Mon. 2/m : _P_21/b
8.DH. Dendoraite-(NH4) (NH4)2NaAl(C2O4)(PO3OH)2(H2O)2 Mon. 2/m
8.DH. Whiteite-(MnMnMn) Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH. Whiteite-(CaMnFe) CaMnFe2Al2(PO4)4(OH)2 · 8H2O Mon. 2/m
8.DH. Hochleitnerite Mn2Ti3(PO4)4O2(H2O)2 · 14H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH. Regerite KFe6(PO4)4(OH)7(H2O)6 · 4H2O Mon. 2/m : _P_21/b
8.DH.05 Minyulite KAl2(PO4)2F · 4H2O Orth. m _m_2 : P b _a_2
8.DH.10 Leucophosphite KFe3+2(PO4)2(OH) · 2H2O Mon. 2/m : _P_21/b
8.DH.10 Spheniscidite (NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O Mon. 2/m
8.DH.10 Tinsleyite KAl2(PO4)2(OH) · 2H2O Mon.
8.DH.15 Jahnsite-(CaMnFe) {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(CaMnMg) {Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(CaMnMn) {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Keckite CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2O Mon. 2/m : _P_2/b
8.DH.15 Rittmannite {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Whiteite-(CaMnMg) {Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O Mon. 2/m
8.DH.15 Whiteite-(MnFeMg) {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_21/b
8.DH.15 Jahnsite-(MnMnMn) {Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_21/b
8.DH.15 Kaluginite (Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2O Orth.
8.DH.15 Jahnsite-(CaFeFe) {Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O Mon.
8.DH.15 Jahnsite-(NaFeMg) NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(NaMnMg) {(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(CaMgMg) {Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
8.DH.15 Whiteite-(CaMnMn) {Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Whiteite-(MnMnMg) MnMnMg2Al2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(MnMnMg) Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(CaFeMg) CaFe2+Mg2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(MnMnFe) Mn2+Mn2+Fe2+2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Whiteite-(CaMgMg) CaMg3Al2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(MnMnZn) Mn2+Mn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(NaMnMn) NaMn2+(Mn2+Fe3+)Σ2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.15 Jahnsite-(CaMnZn) CaMn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2O Mon. 2/m : _P_2/b
8.DH.20 Lun'okite (Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.20 Manganosegelerite (Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.20 Overite CaMgAl(PO4)2(OH) · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.20 Segelerite Ca2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P c c a
8.DH.20 Wilhelmvierlingite CaMnFe3+(PO4)2(OH) · 2H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.20 Juonniite CaMgSc(PO4)2(OH) · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.25 Calcioferrite Ca2Fe3+2(PO4)3(OH) · 7H2O Mon. 2/m : _B_2/b
8.DH.25 Kingsmountite Ca3MnFeAl4(PO4)6(OH)4 · 12H2O Tric. 1 : _P_1
8.DH.25 Montgomeryite Ca4MgAl4(PO4)6(OH)4 · 12H2O Mon. 2 : _B_2
8.DH.25 Zodacite Ca4Mn2+Fe3+4(PO4)6(OH)4 · 12H2O Mon.
8.DH.25 Fanfaniite Ca4MnAl4(PO4)6(OH)4 · 12H2O Mon. 2/m : _B_2/b
8.DH.30 Arseniosiderite Ca2Fe3+3(AsO4)3O2 · 3H2O Mon. 2/m : _B_2/b
8.DH.30 Kolfanite Ca2Fe3+3O2(AsO4)3 · 2H2O Mon.
8.DH.30 Mitridatite Ca2Fe3+3(PO4)3O2 · 3H2O Mon. 2/m : _B_2/b
8.DH.30 Pararobertsite Ca2Mn3+3(PO4)3O2 · 3H2O Mon. 2/m : _P_21/b
8.DH.30 Robertsite Ca2Mn3+3(PO4)3O2 · 3H2O Mon. m : B b
8.DH.30 Sailaufite (Ca,Na,◻)2Mn3+3(AsO4)2(CO3)O2 · 3H2O Mon. m : B m
8.DH.35 Mantienneite KMg2Al2Ti(PO4)4(OH)3 · 15H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.35 Paulkerrite K(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2O Mon. m
8.DH.35 Benyacarite (H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.35 Hydroxylbenyacarite (H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
8.DH.35 Macraeite K(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2O Mon. 2/m : _P_21/b
8.DH.35 Sperlingite (H2O)K(Mn2+Fe3+)(Al2Ti)(PO4)4[O(OH)] [(H2O)9(OH)] · 4H2O Mon. 2/m : _P_21/b
8.DH.40 Xanthoxenite Ca4Fe3+2(PO4)4(OH)2 · 3H2O Tric. 1 : _P_1
8.DH.45 Mahnertite NaCu3(AsO4)2Cl · 5H2O Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m m m
8.DH.50 Andyrobertsite KCdCu5(AsO4)4(H2AsO4) · 2H2O Mon. 2/m : _P_21/m
8.DH.50 Calcioandyrobertsite KCaCu5(AsO4)4(H2AsO4) · 2H2O Mon. 2/m : _P_21/m
8.DH.55 Englishite K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O Mon. 2/m
8.DH.60 Bouazzerite Bi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2O Mon. 2/m
8.DH.65 Galliskiite Ca4Al2(PO4)2F8 · 5H2O Tric. 1 : _P_1
8.DH.70 Joteite Ca2CuAl(AsO4)[AsO3(OH)]2(OH)2 · 5H2O Tric. 1 : _P_1
8.DH.75 Kampelite Ba6Mg3Sc8(PO4)12(OH)6 · 7H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
8.DH.80 Kapundaite NaCaFe4(PO4)4(OH)3 · 5H2O Tric. 1 : _P_1
8.DH.85 Vaniniite Ca2Mn2+3Mn3+2O2(AsO4)4 · 2H2O Mon. 2/m : _P_21/b

Other InformationHide

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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 Whiteite-(CaFeMg)Hide

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Reference List:

Capitelli, Francesco, Chita, Giuseppe, Cavallo, Andrea, Bellatreccia, Fabio, Della Ventura, Giancarlo (2011) Crystal structure of whiteite-(CaFeMg) from Crosscut Creek, Canada. Zeitschrift für Kristallographie - Crystalline Materials, 226 (9) 731-738 doi:10.1524/zkri.2011.1393

Localities for Whiteite-(CaFeMg)Hide

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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.

Austria
Carinthia Spittal an der Drau District Millstatt lake Laggerhof Abstracts Volume +2 other references
Brazil
Minas Gerais Conselheiro Pena Barra do Cuieté Eduardo claim Sergio Varvello collection
Galiléia Laranjeiras Ênio claim Cassedanne et al. (1981)
Itinga Jenipapo pegmatite field Sergio Varvello collection
Taquaral Ilha claim (TL) Moore et al. (1978)
Canada
Yukon Dawson mining district Big Fish River Pavel Kartashov Analysis
Rapid Creek Robinson et al. (1992)
Kulan Camp (Area A; Area 1) Crosscut Creek Capitelli et al. (2011)
Locality 2 Robinson et al. (1992)
Locality 7 Robinson et al. (1992)
Germany
Thuringia Greiz District Kauern Lichtenberg Absetzer dump T. Witzke & F. Rüger: Lapis 1998 (7/8)
Spain
Extremadura Badajoz Tres Arroyos Tres Arroyos pegmatite field Garate-Olave et al. (2020)