Mineralogy Database

Vyalsovite Mineral Data

Search Webmineral :

General Vyalsovite Information

Help on Chemical  Formula: Chemical Formula: FeS•Ca(OH)2•Al(OH)3
Help on Composition: 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 % 
Help on Empirical Formula: Empirical Formula: Fe2+SCaAl(OH)5
Help on Environment: Environment: In a skarn.
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Talnakh, Norilsk, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Leonid N. Vyalsov (1939-), Russian mineralogist.
Help on Name Pronunciation: Name Pronunciation: Vyalsovite + Pronunciation Say VYALSOVITE
Help on Synonym: Synonym: IMA1989-004

Vyalsovite Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image


Comments: Purplish vyalsovite. Polished section from microbrobe analysis, in reflected light, parallel nicols.
Location: Komsomolskaya Mine, Talnakh, Norilsk, Russia. Scale: Picture size 0.1 mm.
© Thomas Witzke

Vyalsovite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6768:1:0.2619
Help on Cell Dimensions: Cell Dimensions: a = 14.2, b = 20.98, c = 5.496, Z = 8; V = 1,637.35 Den(Calc)= 1.95
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: C mmm ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.4(1), 2.16(0.5), 4.76(0.4),

Physical Properties of Vyalsovite

Help on Color: Color: Red.
Help on Density: Density: 1.96
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Luster: Luster: Sub Metallic

Calculated Properties of Vyalsovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.95 gm/cc
note: Specific Gravity of Vyalsovite =1.95 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0063235533
Boson Index = 0.9936764467
Help on Photoelectric: Photoelectric: PEVyalsovite = 9.88 barns/electron
U=PEVyalsovite x rElectron Density= 19.27 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vyalsovite is Not Radioactive

Vyalsovite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.14)(Hydroxyl or Hydrated)
  (02.14.04)Dana Group Vyalsovite FeS•Ca(OH)2•Al(OH)3 C mmm ? 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.FD.45 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O
  02.FD -With O, OH, H2O
02.FD.45 Vyalsovite FeS•Ca(OH)2•Al(OH)3 C mmm ? 2/m 2/m 2/m

Other Vyalsovite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.77,p201-206,1992)
Help on See Also: See Also: Links to other databases for Vyalsovite :
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 Vyalsovite using:

Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Vyalsovite :

Ask about Vyalsovite 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 Vyalsovite Specimen Label here :


Dana No: Strunz No: 02.FD.45





Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.