Stoiberite Mineral Data

Stoiberite Mineral Data
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General Stoiberite Information

Help on Chemical Formula: Chemical Formula: Cu5V+++++2O10
Help on Composition: Composition: Molecular Weight = 579.61 gm
   Vanadium  17.58 %  V    31.38 % V2O5
   Copper    54.82 %  Cu   68.62 % CuO
   Oxygen    27.60 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu5V5+2O10
Help on Environment: Environment: Rare mineral, deposited in vanadium-bearing sublimates in fumaroles on a basaltic volcanic cone.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Izalco volcano, El Salvador. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Richard Edwin Stoiber (1911-2001), Emeritus Professor of Geology and Vulcanology, Dartmouth College, Hanover, New Hampshire, USA.
Help on Name Pronunciation: Name Pronunciation: Stoiberite + Pronunciation Say STOIBERITE
Help on Synonym: Synonym: ICSD 2557
  PDF 33-504
 

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Stoiberite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.5857:1:1.385
Help on Cell Dimensions: Cell Dimensions: a = 15.654, b = 6.054, c = 8.385, Z = 4; beta = 102.29° V = 776.43 Den(Calc)= 4.96
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.92(1), 2.095(0.8), 2.755(0.8),
Click Here for Large Stoiberite Structure Window Crystal Structure:

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Shannon R D , Calvo C , Acta Crystallographica, Section B , 29 (1973) p.1338-1345, Crystal structure of Cu5V2O10, Locality: synthetic

 

Physical Properties of Stoiberite

Help on Color: Color: Black, Reddish brown.
Help on Density: Density: 4.96
Help on Diaphaneity: Diaphaneity: Opaque
Help on Luster: Luster: Metallic
Help on Streak: Streak: red brown
 

Optical Properties of Stoiberite

Help on Optical Data: Optical Data: NCalc= 2.11 - from Gladstone-Dale relationship (KC = 0.2233) where Ncalc=Dcalc*KC+1
NCalc= 2.11 - from Gladstone-Dale relationship (KC = 0.2233) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Stoiberite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.64 gm/cc
note: Specific Gravity of Stoiberite =4.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0005719472
Boson Index = 0.9994280528
Help on Photoelectric: Photoelectric: PEStoiberite = 28.12 barns/electron
U=PEStoiberite x rElectron Density= 130.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stoiberite is Not Radioactive
 

Stoiberite Classification
Help on Dana Class: Dana Class: 41.04.05.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.04)where (A B)5 (XO4)2 Zq
  (41.04.05)Dana Group
 
41.04.05.01 Stoiberite Cu5V2O10 P 21/n 2/m
 
41.04.05.02 Averievite! Cu5(VO4)2O2•CuCl2 P 3 3
Help on Strunz Class: Strunz Class: 08.BB.75 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 £ 1:1
 
08.BB.75 Stoiberite Cu5V2O10 P 21/n 2/m
 

Other Stoiberite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Stoiberite :
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
15 - WWW-MINCRYST

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

Stoiberite

Cu5V+++++2O10
Dana No: 41.04.05.01 Strunz No: 08.BB.75
Locality:

 

Notes: