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Palladobismutharsenide Mineral Data
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General Palladobismutharsenide Information
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 Chemical Formula: |
Pd2(As,Bi) |
| Composition: |
Molecular Weight = 314.57 gm |
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Bismuth 13.29 % Bi |
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Arsenic 19.05 % As |
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Palladium 67.66 % Pd |
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______ |
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100.00 % |
| Empirical Formula: |
Pd2As0.8Bi0.2 |
| Environment: |
Ultrabasic igneous intrusion. |
| IMA Status: |
Approved IMA 1976 |
| Locality: |
Stillwater complex, Nye County, Montana, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the composition (Pd, Bi, As). |
| Name Pronunciation: |
Palladobismutharsenide + Pronunciation  |
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Palladobismutharsenide Crystallography
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| Axial Ratios: |
a:b:c =0.3941:1:0.3587 |
| Cell Dimensions: |
a = 7.467, b = 18.946, c = 6.797, Z = 20; V = 961.57 Den(Calc)= 10.86 |
| Crystal System: |
Orthorhombic Space Group: Pmcn,P 21cn |
| X Ray Diffraction: |
By Intensity(I/Io): 2.232(1), 2.083(0.9), 2.485(0.9), |
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Physical Properties of Palladobismutharsenide
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| Color: |
Silver white. |
| Density: |
10.86 |
| Diaphaneity: |
Opaque |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
5 - Apatite |
| Luster: |
Metallic |
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Optical Properties of Palladobismutharsenide
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| RL Anisotrophism: |
Weak to distinct, in air from gray to extinction; under oil varying from gray to brownish gray. |
| RL Color: |
Creamy. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Palladobismutharsenide in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 470 nm |
53.60 |
54.50 |
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| 546 nm |
52.10 |
53.00 |
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| 589 nm |
53.60 |
54.60 |
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| 650 nm |
55.80 |
56.10 |
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Calculated Relative Intensity Colors of Palladobismutharsenide in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
170% |
| R1 |
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| R2 |
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Calculated Properties of Palladobismutharsenide
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| Electron Density: |
Bulk Density (Electron Density)=9.32 gm/cc
note: Specific Gravity of Palladobismutharsenide =10.9 gm/cc.
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| Fermion Index: |
Fermion Index = 0.15
Boson Index = 0.85 |
| Photoelectric: |
PEPalladobismutharsenide = 428.37 barns/electron
U=PEPalladobismutharsenide x rElectron Density=3,992.91 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Palladobismutharsenide is Not Radioactive |
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Palladobismutharsenide Classification
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| Dana Class: |
02.04.15.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.04)where Am Bn Xp, with (m+n):p=2:1 |
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(02.04.15)Dana Group |
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02.04.15.01 Palladobismutharsenide Pd2(As,Bi) Pmcn,P 21cn Ortho |
| Strunz Class: |
02.AC.25f 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.A - Simple Sulfides, Selenides, etc |
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02.AC -Alloys of metalloids with PGE |
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02.AC.25f Palladobismutharsenide Pd2(As,Bi) Pmcn,P 21cn Ortho |
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Other Palladobismutharsenide Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Palladobismutharsenide :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Palladobismutharsenide
Pd2(As,Bi)
Dana No: 02.04.15.01 Strunz No: 02.AC.25f
Locality:
Notes:
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