Genkinite Mineral Data (original) (raw)
General Genkinite Information
Chemical Formula:
(Pt,Pd)4Sb3
Composition:
Molecular Weight = 1,056.91 gm
Antimony 34.56 % Sb
Palladium 10.07 % Pd
Platinum 55.37 % Pt
______
100.00 %
Empirical Formula:
Pt3PdSb3
Environment:
In ultramafics or ophiolites mineralized with Pt-Fe-Cu-Ni, and placers derived for them.
IMA Status:
Approved IMA 1977
Locality:
In the Onverwacht and Driekop mines, Transvaal, South Africa. Link to MinDat.org Location Data.
Name Origin:
For Dr. A.D. Genkin, Soviet mineralogist.
Name Pronunciation:
Genkinite + Pronunciation 
Genkinite Image
Images:
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Genkinite Comments: Genkinite (3), with a typical rim of an undetermined oxidation product (darker grey), closely associated with platarsite (2) and Pt-Fe alloy (1). Chromite crystals (4). Location: In the Onverwacht and Driekop mines, Transvaal, South Africa. (CanMin, v15:389).Scale: See Image. © Canadian Mineralogist |
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Genkinite Crystallography
Axial Ratios:
a:c = 1:3.12319
Cell Dimensions:
a = 7.736, c = 24.161, Z = 8; V = 1,445.93 Den(Calc)= 9.71
Crystal System:
Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 41212
X Ray Diffraction:
By Intensity(I/Io): 2.265(1), 3.02(0.9), 1.934(0.6),
Physical Properties of Genkinite
Color:
Gray.
Density:
8.83
Diaphaneity:
Opaque
Hardness:
5.5-6 - Knife Blade-Orthoclase
Luster:
Metallic
Optical Properties of Genkinite
RL Anisotrophism:
Moderate to strong, from gray to extinction.
RL Color:
Pale brown or tan with a yellowish tinge.
RL Pleochroism:
Weak in oil for some grains.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Genkinite in Air
| λ | R1 | R 2 |  |
∑ R1(λ) | ∑ R2(λ) |
|---|---|---|---|---|---|
| 400 nm | 41.10 | 42.10 |  |
||
| 420 nm | 43.00 | 44.00 |  |
||
| 440 nm | 44.90 | 45.90 |  |
||
| 460 nm | 46.60 | 47.30 |  |
||
| 480 nm | 48.00 | 48.50 |  |
||
| 500 nm | 49.00 | 49.50 |  |
||
| 520 nm | 50.00 | 50.30 |  |
||
| 540 nm | 50.80 | 51.10 |  |
||
| 560 nm | 51.60 | 52.00 |  |
||
| 580 nm | 52.50 | 53.00 |  |
||
| 600 nm | 53.60 | 54.00 |  |
||
| 620 nm | 54.40 | 55.10 |  |
||
| 640 nm | 55.10 | 56.10 |  |
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| 660 nm | 55.70 | 56.90 |  |
||
| 680 nm | 56.20 | 57.40 |  |
||
| 700 nm | 56.60 | 57.30 |  |
Calculated Relative Intensity Colors of Genkinite in Air
| RelativeIntensity | 0% | 30% | 60% | 90% | 100% | 120% | 150% | 180% | 200% |
|---|---|---|---|---|---|---|---|---|---|
| R1 | |||||||||
| R2 |
Calculated Properties of Genkinite
Electron Density:
Bulk Density (Electron Density)=7.96 gm/cc
note: Specific Gravity of Genkinite =9.71 gm/cc.
Fermion Index:
Fermion Index = 0.2
Boson Index = 0.8
Photoelectric:
PEGenkinite =1,025.11 barns/electron
U=PEGenkinite x rElectron Density=8,155.85 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Genkinite is Not Radioactive
Genkinite Classification
Dana Class:
02.06.04.01 (02)Sulfides - Including Selenides and Tellurides
(02.06)where Am Bn Xp, with (m+n):p=4:3
(02.06.04)Genkinite Group
02.06.04.01 Genkinite (Pt,Pd)4Sb3 P 41212 4 2 2
02.06.04.02 Oulankaite! (Pd,Pt)5(Cu,Fe)4SnTe2S2 Tetra
02.06.04.03 Ungavaite! Pd4Sb3 P 41212, P 4122, P 43212 4 2 2
Strunz Class:
02.AC.35a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
02.A - Simple Sulfides, Selenides, etc
02.AC -Alloys of metalloids with PGE
02.AC.35a Genkinite (Pt,Pd)4Sb3 P 41212 4 2 2
Other Genkinite Information
References:
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
See Also:
Links to other databases for Genkinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Print or Cut-and-Paste your Genkinite Specimen Label here :
Genkinite
(Pt,Pd)4Sb3
Dana No: 02.06.04.01 Strunz No: 02.AC.35a
Locality:
Notes: