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Majakite Mineral Data
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General Majakite Information
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 Chemical Formula: |
PdNiAs |
| Composition: |
Molecular Weight = 240.03 gm |
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Nickel 24.45 % Ni |
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Arsenic 31.21 % As |
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Palladium 44.34 % Pd |
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______ |
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100.00 % |
| Empirical Formula: |
PdNiAs |
| Environment: |
Intergrown with chalcopyrite and platinum group metals. |
| IMA Status: |
Approved IMA 1976 |
| Locality: |
Najak mine, Talnakh, Norilsk, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Majakite  |
| Synonym: |
Mayakite |
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Majakite Crystallography
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| Axial Ratios: |
a:c = 1:1.18694 |
| Cell Dimensions: |
a = 6.066, c = 7.2, Z = 6; V = 229.44 Den(Calc)= 10.42 |
| Crystal System: |
Hexagonal Space Group: Unk |
| X Ray Diffraction: |
By Intensity(I/Io): 1.988(1), 2.65(1), 2.19(0.7), |
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Physical Properties of Majakite
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| Color: |
Gray white. |
| Density: |
9.33 |
| Diaphaneity: |
Opaque |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
6 - Orthoclase |
| Luster: |
Metallic |
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Optical Properties of Majakite
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| RL Anisotrophism: |
Weak. |
| RL Color: |
Grayish white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Majakite in Air
| λ |
R |
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∑ R(λ) |
| 440 nm |
47.40 |
 |
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| 460 nm |
49.00 |
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| 480 nm |
50.50 |
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| 500 nm |
51.20 |
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| 520 nm |
52.30 |
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| 540 nm |
52.80 |
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| 560 nm |
54.40 |
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| 580 nm |
55.20 |
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| 600 nm |
55.80 |
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| 620 nm |
56.10 |
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| 640 nm |
56.70 |
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| 660 nm |
58.00 |
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| 680 nm |
57.90 |
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| 700 nm |
58.50 |
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Calculated Relative Intensity Colors of Majakite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
| R |
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Calculated Properties of Majakite
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| Electron Density: |
Bulk Density (Electron Density)=9.29 gm/cc
note: Specific Gravity of Majakite =10.4 gm/cc.
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| Fermion Index: |
Fermion Index = 0.1
Boson Index = 0.9 |
| Photoelectric: |
PEMajakite = 137.23 barns/electron
U=PEMajakite x rElectron Density=1,274.90 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Majakite is Not Radioactive |
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Majakite Classification
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| Dana Class: |
02.04.16.01 (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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(02.04.16)Dana Group |
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02.04.16.01 Majakite PdNiAs Unk Hex |
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02.04.16.02 Menshikovite! Pd3Ni2As3 P 63/m,P 63, or P 6322 Hex |
| Strunz Class: |
02.AC.25e 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.25e Majakite PdNiAs Unk Hex |
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Other Majakite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Majakite :
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 Majakite Specimen Label here :
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Majakite
PdNiAs
Dana No: 02.04.16.01 Strunz No: 02.AC.25e
Locality:
Notes:
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