| |
 |
Genkinite Mineral Data
|
|
|
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:
|
|
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 |
|
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 - Trapezohedral H-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 |
R2 |
 |
∑ 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 |
|
| 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
Relative
Intensity |
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
Search for Genkinite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Genkinite :
Ask about Genkinite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Espaņol
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:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.