Whitmoreite (original) (raw)
A valid IMA mineral species
About WhitmoreiteHide
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Formula:
Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Colour:
Yellow-brown, green-brown
Lustre:
Sub-Adamantine, Vitreous
Crystal System:
Monoclinic
Name:
Named in 1974 by Paul Brian Moore, Anthony Robert Kampf, and A. J. Irving in honour of Robert Whitmore (20 September 1936 - 7 May 2011), mineral collector of Weare, New Hampshire (USA) and owner of the Palermo Pegmatite localities in Groton.
Arthurite Group. The phosphate analogue of Bendadaite. The mineral ranges from golden-yellow to dark red-brown. The mineral is mostly found as open crystal sprays, often with a central sphere-like nucleus and ordinarily lighter than the sprays.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4281:5
f4a44260-b5e6-4153-8659-01346c2589eb
IMA Classification of WhitmoreiteHide
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Type description reference:
Classification of WhitmoreiteHide
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8.DC.15
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
42.11.20.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
19.13.6
19 : Phosphates
13 : Phosphates of Fe alone
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Whm | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Whm | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
Physical Properties of WhitmoreiteHide
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Transparency:
Transparent, Translucent
Colour:
Yellow-brown, green-brown
Cleavage:
Imperfect/Fair
Fair on {100}
Density:
2.87(1) g/cm3 (Measured) 2.85 g/cm3 (Calculated)
Optical Data of WhitmoreiteHide
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RI values:
_n_α = 1.670 - 1.676 _n_β = 1.712 - 1.725 _n_γ = 1.745 - 1.850
2V:
Measured: 60° to 65°, Calculated: 62°
δ = 0.075 - 0.174
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Comments:
X=Y= light greenish brown to yellow
Z= dark greenish brown to yellowish green
Chemistry of WhitmoreiteHide
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Mindat Formula:
Fe2+Fe3+2(PO4)2(OH)2 · 4H2O
Crystallography of WhitmoreiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10 Å, b = 9.73(2) Å, c = 5.471(8) Å
β = 93.8°
Ratio:
a:b:c = 1.028 : 1 : 0.562
Unit Cell V:
531.16 ų (Calculated from Unit Cell)
Morphology:
Uncommon as pseudo-orthorhombic crystals, prismatic to acicular with chisel shape terminations. In fans, radiating sprays or balls. Observed forms include: a{100}, m{110}, s{011}, t{021}, and u{112}.
Twinning:
Common by reflection on {100}
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0000411 | Whitmoreite | Moore P B, Kampf A R, Irving A J (1974) Whitmoreite, FeFe2(OH)2(H2O)4[PO4]2, a new species: Its description and atomic arrangement American Mineralogist 59 900-905 |  |
1974 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.05 Å | (10) |
| 7.01 Å | (7) |
| 4.98 Å | (7) |
| 4.21 Å | (7) |
| 2.802 Å | (7) |
| 4.42 Å | (6) |
| 3.476 Å | (5) |
Geological EnvironmentHide
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Geological Setting:
Secondary mineral in complex zoned granitic pegmatites.
Type Occurrence of WhitmoreiteHide
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General Appearance of Type Material:
Acicular crystals with a length to width ratio of 5 to 10, and a length of 0.1 to 2.0 mm. The crystals form fans and sprays. Occasionally as isolated individuals. Typically occurs as a small spheric core from which small, thin crystals radiate.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 128069.
Geological Setting of Type Material:
Pegmatite. Hydrothermal alteration of triphylite.
Associated Minerals at Type Locality:
Reference:
Moore, P.B., Kampf, A.R. and Irving, A.J. (1974) Whitmoreite, Fe2+Fe3+2(OH)2(H2O)4[PO4]2, a new species: Its description and atomic arrangement. American Mineralogist: 59: 900-905.
Synonyms of WhitmoreiteHide
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Other Language Names for WhitmoreiteHide
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Relationship of Whitmoreite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 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. | Ianbruceite | Zn2(AsO4)(OH) · 3H2O | Mon. 2/m : _P_21/b |
| 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 | Earlshannonite | Mn2+Fe3+2(PO4)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.15 | Cobaltarthurite | CoFe3+2(AsO4)2(OH)2 · 4H2O | Mon. 2/m : _P_21/b |
| 8.DC.15 | Arthurite | CuFe3+2(AsO4)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 | Bendadaite | Fe2+Fe3+2(AsO4)2(OH)2 · 4H2O | Mon. 2/m : _P_21/b |
| 8.DC.17 | Kleemanite | ZnAl2(PO4)2(OH)2 · 3H2O | Mon. |
| 8.DC.20 | Magnesiobermanite | MgMn3+2(PO4)2(OH)2 · 4H2O | Mon. 2 : _P_21 |
| 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.22 | Kovdorskite | Mg2(PO4)(OH) · 3H2O | Mon. 2/m : _P_21/b |
| 8.DC.25 | Zincostrunzite | ZnFe3+2(PO4)2(OH)2 · 6.5H2O | Tric. 1 : _P_1 |
| 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 | Ferristrunzite | Fe3+Fe3+2(PO4)2(OH)3 · 5H2O | Tric. |
| 8.DC.25 | Strunzite | Mn2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. 1 : _P_1 |
| 8.DC.25 | Ferrostrunzite | Fe2+Fe3+2(PO4)2(OH)2 · 6H2O | Tric. |
| 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 | Maghrebite | MgAl2(AsO4)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 | Ushkovite | MgFe3+2(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 | Paravauxite | Fe2+Al2(PO4)2(OH)2 · 8H2O | Tric. 1 : _P_1 |
| 8.DC.30 | Sigloite | Fe3+Al2(PO4)2(OH)3 · 7H2O | 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.30 | Mangangordonite | Mn2+Al2(PO4)2(OH)2 · 8H2O | Tric. 1 : _P_1 |
| 8.DC.30 | Stewartite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Tric. 1 : _P_1 |
| 8.DC.30 | Gordonite | MgAl2(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 | Pseudolaueite | Mn2+Fe3+2(PO4)2(OH)2 · 8H2O | Mon. 2/m : _P_21/b |
| 8.DC.32 | Kamarizaite | Fe3+3(AsO4)2(OH)3 · 3H2O | Tric. 1 : _P_1 |
| 8.DC.32 | Tinticite | Fe3+3(PO4)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 | Souzalite | (Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O | Tric. 1 |
| 8.DC.45 | Gormanite | (Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O | Tric. |
| 8.DC.47 | Kingite | Al3(PO4)2F2(OH) · 7H2O | Tric. |
| 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.50 | Wavellite | Al3(PO4)2(OH,F)3 · 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 | Cloncurryite | Cu0.5(VO)0.5Al2(PO4)2F2 · 5H2O | Mon. 2/m : _P_21/b |
| 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.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.70 | Whitecapsite | H16Fe2+5Fe3+14Sb3+6(AsO4)18O16 · 120H2O | Hex. 6/m : _P_63/m |
| 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 |
Fluorescence of WhitmoreiteHide
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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.
Internet Links for WhitmoreiteHide
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References for WhitmoreiteHide
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Reference List:
Localities for WhitmoreiteHide
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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.