Mineralogy Database

Stishovite Mineral Data

Search Webmineral :
  
Advertisment

General Stishovite Information

Help on Chemical  Formula: Chemical Formula: SiO2
Help on Composition: Composition: Molecular Weight = 60.08 gm
   Silicon  46.74 %  Si  100.00 % SiO2
   Oxygen   53.26 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (SiO2)
Help on Environment: Environment: Found at sites of meteorite impact, formed by shock metamorphism of quartz at temperatures 1200 deg C and pressures �100 kbar. Quartz, tridymite, cristobalite, and coesite are polym orphs.
Help on IMA Status: IMA Status: Approved IMA 1962
Help on Locality: Locality: Meteor Crater, Arizona, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Sergei Mikhailovich Stishov, Russian Crystallographer who, with S.V. Popova, first synthesized the compound.
Help on Name Pronunciation: Name Pronunciation: Stishovite + Pronunciation Say STISHOVITE
Help on Synonym: Synonym: ICSD 68409
  PDF 45-1374
 

Stishovite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.63768
Help on Cell Dimensions: Cell Dimensions: a = 4.179, c = 2.6649, Z = 2; V = 46.54 Den(Calc)= 4.29
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.959(1), 1.53(0.5), 1.981(0.35),
 

Physical Properties of Stishovite

Help on Color: Color: Colorless.
Help on Density: Density: 4.35
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 7.5-8
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Stishovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.102 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.089 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1894,KPDmeas= 0.1868,KC= 0.208
Ncalc = 1.89 - 1.9
Help on Optical Data: Optical Data: Uniaxial (+), w=1.799, e=1.826, bire=0.0270.
 

Calculated Properties of Stishovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.28 gm/cc
note: Specific Gravity of Stishovite =4.29 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEStishovite = 1.80 barns/electron
U=PEStishovite x rElectron Density= 7.70 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stishovite is Not Radioactive
 

Stishovite Classification

Help on  Dana Class: Dana Class: 04.04.01.09 (04)Simple Oxides
  (04.04)with a cation charge of 4+ (A++++ O2)
  (04.04.01)Rutile group (Tetragonal: P4/mnm)
 
04.04.01.01 Rutile TiO2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.02 Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.03 Struverite? (Ti,Ta,Fe)O2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.04 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.06 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.07 Argutite GeO2 P 4/mnm 4/m 2/m 2/m
 
04.04.01.08 Squawcreekite? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m
 
04.04.01.09 Stishovite SiO2 P 4/mnm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.DA.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DA -With small cations
 
04.DA.40 Stishovite SiO2 P 4/mnm 4/m 2/m 2/m
 

Other Stishovite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Stishovite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineral and Gemstone Kingdom
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - University of Colorado - Mineral Structure Data
18 - WWW-MINCRYST

Search for Stishovite using:

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

Visit our Advertisers for Stishovite :

Ask about Stishovite 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 Stishovite Specimen Label here :

Stishovite

SiO2
Dana No: 04.04.01.09 Strunz No: 04.DA.40
Locality:

 

Notes:

 

 
   
 


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