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Yushkinite Mineral Data
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General Yushkinite Information
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 Chemical Formula: |
V1-xS•n(Mg,Al)(OH)2 |
| Composition: |
Molecular Weight = 87.39 gm |
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Magnesium 11.88 % Mg |
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Aluminum 7.53 % Al |
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Vanadium 23.32 % V |
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Hydrogen 2.31 % H |
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Sulfur 18.35 % S |
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Oxygen 36.62 % O |
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______ |
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100.00 % |
| Empirical Formula: |
V3+0.4S0.50.61(Mg0.7)0.61(Al0.4)(OH)2 |
| Environment: |
In quartz-carbonate veins in carbonate rocks. |
| IMA Status: |
Approved IMA 1984 |
| Locality: |
From Pay-Khoy, in the middle stram of the Silova-Yakha River, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for N. P. Yushkin, Russian mineralogist. |
| Name Pronunciation: |
Yushkinite + Pronunciation  |
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Yushkinite Image |
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Images:
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Yushkinite Crystallography
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| Axial Ratios: |
a:c = 1:3.52024 |
| Cell Dimensions: |
a = 3.21, c = 11.3, Z = 2; V = 100.84 Den(Calc)= 2.88 |
| Crystal System: |
Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: P 3m1 |
| X Ray Diffraction: |
By Intensity(I/Io): 5.68(1), 1.575(0.6), 2.76(0.6), |
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Physical Properties of Yushkinite
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| Color: |
Violet, Red lilac, Pinkish gray. |
| Density: |
2.94 |
| Diaphaneity: |
Opaque |
| Fracture: |
Plastic - Deforms like soft, plastic materials. |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Flakes - Flat, thin crystals or aggregates. |
| Habit: |
Scaly - Morphology like fish scales. |
| Hardness: |
1 - Talc |
| Luster: |
Metallic |
| Streak: |
reddish gray |
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Optical Properties of Yushkinite
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| RL Anisotrophism: |
Strong, orange-red with weak lilac tint in isotropic sections, red-lilac to pinkish dark gray. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Yushkinite in Air
| λ |
R |
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∑ R(λ) |
| 440 nm |
26.00 |
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| 460 nm |
22.40 |
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| 480 nm |
19.00 |
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| 500 nm |
17.60 |
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| 520 nm |
17.80 |
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| 540 nm |
18.70 |
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| 560 nm |
20.70 |
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| 580 nm |
23.30 |
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| 600 nm |
26.40 |
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| 620 nm |
29.60 |
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| 640 nm |
32.80 |
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| 660 nm |
35.70 |
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| 680 nm |
38.20 |
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| 700 nm |
40.10 |
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Calculated Relative Intensity Colors of Yushkinite in Air
Relative
Intensity |
0% |
50% |
100% |
150% |
200% |
250% |
300% |
350% |
400% |
420% |
| R |
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Calculated Properties of Yushkinite
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| Electron Density: |
Bulk Density (Electron Density)=2.87 gm/cc
note: Specific Gravity of Yushkinite =2.88 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEYushkinite = 5.79 barns/electron
U=PEYushkinite x rElectron Density= 16.61 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Yushkinite is Not Radioactive |
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Yushkinite Classification
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| Dana Class: |
02.14.03.02 (02)Sulfides - Including Selenides and Tellurides |
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(02.14)(Hydroxyl or Hydrated) |
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(02.14.03)Dana Group |
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02.14.03.01 Haapalaite 2(Fe,Ni)S•1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m |
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02.14.03.02 Yushkinite V1-xS•n(Mg,Al)(OH)2 P 3m1 3m |
| Strunz Class: |
02.FD.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O |
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02.FD -With O, OH, H2O |
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02.FD.30 Haapalaite 2(Fe,Ni)S•1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m |
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02.FD.30 Valleriite 4(Fe,Cu)S•3(Mg,Al)(OH)2 R 3m 3 2/m |
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02.FD.30 Yushkinite V1-xS•n(Mg,Al)(OH)2 P 3m1 3m |
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Other Yushkinite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Yushkinite :
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 Yushkinite Specimen Label here :
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Yushkinite
V1-xS•n(Mg,Al)(OH)2
Dana No: 02.14.03.02 Strunz No: 02.FD.30
Locality:
Notes:
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