Vyalsovite Mineral Data

[Mineral Galleries] [About Me] [e-Bay Items] [Latest News] [How to Order]
A Diverse Selection of Beautifully Unique Gem & Mineral Specimens
Desert Winds Gems & Minerals • For All Levels of Collectors Worldwide
Aesthetic & Rare Mineral Specimens • Regular Updates

General Vyalsovite Information

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.

Name Pronunciation:

Vyalsovite + Pronunciation

Synonym:

IMA1989-004

Vyalsovite Image

Images:

Vyalsovite

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

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 ?

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 5.4(1), 2.16(0.5), 4.76(0.4),

Physical Properties of Vyalsovite

Color:

Red.

Density:

1.96

Diaphaneity:

Opaque

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Luster:

Sub Metallic

Calculated Properties of Vyalsovite

Electron Density:

Bulk Density (Electron Density)=1.95 gm/cc
note: Specific Gravity of Vyalsovite =1.95 gm/cc.

Fermion Index:

Fermion Index = 0.0063235533
Boson Index = 0.9936764467

Photoelectric:

PE_Vyalsovite= 9.88 barns/electron
U=PE_Vyalsovite x rElectron Density= 19.27 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vyalsovite is Not Radioactive

Vyalsovite Classification

Dana Class:

02.14.04.01 (02)Sulfides - Including Selenides and Tellurides

(02.14)(Hydroxyl or Hydrated)

(02.14.04)Dana Group

02.14.04.01 Vyalsovite FeS•Ca(OH)2•Al(OH)3 C mmm ? 2/m 2/m 2/m

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

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 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Vyalsovite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Vyalsovite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Vyalsovite Mineral Data :

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 Español

Print or Cut-and-Paste your Vyalsovite Specimen Label here :

Vyalsovite

FeS•Ca(OH)2•Al(OH)3
Dana No: 02.14.04.01 Strunz No: 02.FD.45
Locality:

Notes: