Wilkmanite (original) (raw)
A valid IMA mineral species - grandfathered
Specific Gravity:
6.96 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Wanold Wrydon Wilkman (13 March 1872 Uusikirkko, Finland - 27 December 1937 Helsinki, Finland), geologist with the Geological Survey of Finland.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:4291:4
283ceadf-62a4-4026-8ae1-4e765248fa01
IMA Classification of WilkmaniteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of WilkmaniteHide
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2.D0.15
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
0 :
2.10.2.1
2 : SULFIDES
10 : AmBnXp, with (m+n):p = 3:4
3.11.17
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
11 : Sulphides etc. of Ni
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 |
|---|---|---|
| Wkm | 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 WilkmaniteHide
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Density:
6.96 g/cm3 (Calculated)
Optical Data of WilkmaniteHide
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Anisotropism:
Strong, pink to yellowish-green
Comments:
Pale yellow to grayish yellow
Chemistry of WilkmaniteHide
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Common Impurities:
Co,Cu,Fe
Crystallography of WilkmaniteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 6.22 Å, b = 3.63 Å, c = 10.52 Å
β = 90.53°
Ratio:
a:b:c = 1.713 : 1 : 2.898
Unit Cell V:
237.52 ų (Calculated from Unit Cell)
Comment:
Space Group: I2/m.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014699 | Wilkmanite | Hiller J E, Wegener W (1960) Untersuchungen im system nickel-selen Neues Jahrbuch fur Mineralogie, Abhandlungen 94 1147-1159 | 1960 | 0 | 293 | ||
| 0014700 | Wilkmanite | Hiller J E, Wegener W (1960) Untersuchungen im system nickel-selen Neues Jahrbuch fur Mineralogie, Abhandlungen 94 1147-1159 | 1960 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.70 Å | (100) |
| 2.02 Å | (100) |
| 1.800 Å | (100) |
| 2.00 Å | (80) |
| 1.815 Å | (80) |
| 1.532 Å | (60) |
| 1.497 Å | (60) |
Geological EnvironmentHide
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Type Occurrence of WilkmaniteHide
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Associated Minerals at Type Locality:
Reference:
Vuorelainen, Y., Huhma, A., Häkli, A. (1964) Sederholmite, wilkmanite, kullerudite, mäkinenite, and trüstedtite, five new nickel selenide minerals. Comptes Rendus de la Société Géologique de Finlande: 36: 113-125.
Other Language Names for WilkmaniteHide
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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 WilkmaniteHide
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References for WilkmaniteHide
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Localities for WilkmaniteHide
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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.