Vyalsovite Mineral Data + 
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Dan Weinrich Fine Minerals
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- 2.14.4.1 Vyalsovite FeS·Ca(OH)2·Al(OH)3 C mmm ? 2/m 2/m 2/m
- II/C.23-10 Yushkinite V1-xS·n(Mg,Al)(OH)2 P 3m1 3m
- II/C.23-20 Valleriite 4(Fe,Cu)S·3(Mg,Al)(OH)2 R 3m 3 2/m
- II/C.23-30 Haapalaite 2(Fe,Ni)S·1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m
- II/C.23-40 Tochilinite 6Fe0.9S·5(Mg,Fe)(OH)2 P 2, Pm, or P 2/m Mono
- II/C.23-50 Vyalsovite FeS·Ca(OH)2·Al(OH)3 C mmm ? 2/m 2/m 2/m
General Vyalsovite Information |
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 Chemical Formula: |
FeS·Ca(OH)2·Al(OH)3 | ||
| Composition: |
Molecular Weight = 240.01 gm | ||
| Calcium 16.70 % Ca | |||
| Aluminum 11.24 % Al | |||
| Iron 23.27 % Fe | |||
| Hydrogen 2.10 % H | |||
| Sulfur 13.36 % S | |||
| Oxygen 33.33 % O | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Fe2+SCaAl(OH)5 | ||
| Environment: |
In a skarn. | ||
| IMA Status: |
Approved IMA 1990 | ||
| Locality: |
Talnakh, Norilsk, Russia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Leonid N. Vyalsov (1939-), Russian mineralogist. | ||
| Synonym: |
IMA1989-004 | ||
Search for Vyalsovite Images | |||
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Images:
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Vyalsovite Crystallography |
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| Axial Ratios: |
a:b:c =0.6768:1:0.2619 | ||
| Cell Dimensions: |
a = 14.2, b = 20.98, c = 5.496, Z = 8; V = 1,637.35 Den(Calc)= 1.95 | ||
| Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: C mmm ? | ||
| X Ray Diffraction: |
By Intensity(I/Io): 5.4(1), 2.16(0.5), 4.76(0.4), | ||
Physical Properties of Vyalsovite |
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| Color: |
Red. | ||
| Density: |
1.96 | ||
| Diaphaniety: |
Opaque | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Luster: |
Sub Metallic | ||
Calculated Properties of Vyalsovite |
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| Electron Density: |
relectron=1.95 gm/cc |
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| Fermion Index |
Fermion Index = 0.00632 Boson Index = 0.99368 |
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| Photoelectric: |
PEVyalsovite = 9.88 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Vyalsovite is Not Radioactive |
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Vyalsovite Classification |
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| Dana Class: |
2.14.4.1 (2)Sulfides - Including Selenides and Tellurides | ||
| (2.14)(Hydroxyl or Hydrated) | |||
| (2.14.4)Dana Group | |||
| Strunz Class: |
II/C.23-50 II - Sulfides and sulphosalts | ||
| II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1 | |||
| II/C.23 - Yushkinite - Vyalsovite series | |||
Other Vyalsovite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.77,p201-206,1992) | ||
| See Also: |
Links to other databases for Vyalsovite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Vyalsovite using: Visit our Advertisers for Vyalsovite : Translate Vyalsovite Mineral Data : Ask about Vyalsovite here : Print or Cut-and-Paste your Vyalsovite Specimen Label here :
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