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General Stoiberite Information |
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 Chemical Formula: |
Cu5V+++++2O10 | ||
| 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 | |||
| Empirical Formula: |
Cu5V5+2O10 | ||
| Environment: |
Rare mineral, deposited in vanadium-bearing sublimates in fumaroles on a basaltic volcanic cone. | ||
| IMA Status: |
Approved IMA 1979 | ||
| Locality: |
Izalco volcano, El Salvador. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Richard Edwin Stoiber (1911-2001), Emeritus Professor of Geology and Vulcanology, Dartmouth College, Hanover, New Hampshire, USA. | ||
| Name Pronunciation: |
Stoiberite + Pronunciation  |
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| Synonym: |
ICSD 2557 | ||
| PDF 33-504 | |||
Search for Stoiberite Images | |||
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Images:
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Stoiberite Crystallography |
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| Axial Ratios: |
a:b:c =2.5857:1:1.385 | ||
| Cell Dimensions: |
a = 15.654, b = 6.054, c = 8.385, Z = 4; beta = 102.29° V = 776.43 Den(Calc)= 4.96 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | ||
| X Ray Diffraction: |
By Intensity(I/Io): 7.92(1), 2.095(0.8), 2.755(0.8), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Stoiberite |
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| Color: |
Black, Reddish brown. | ||
| Density: |
4.96 | ||
| Diaphaneity: |
Opaque | ||
| Luster: |
Metallic | ||
| Streak: |
red brown | ||
Optical Properties of Stoiberite |
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| 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 |
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Calculated Properties of Stoiberite |
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| Electron Density: |
Bulk Density (Electron Density)=4.64 gm/cc note: Specific Gravity of Stoiberite =4.96 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0005719472 Boson Index = 0.9994280528 |
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| Photoelectric: |
PEStoiberite = 28.12 barns/electron U=PEStoiberite x rElectron Density= 130.43 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Stoiberite is Not Radioactive |
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Stoiberite Classification |
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| 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 | |||
| 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 | |||
Other Stoiberite Information |
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| 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 Search for Stoiberite using: Visit our Advertisers for Stoiberite : A Bijoux Google Search for StoiberiteAdam's Minerals Google Search for Stoiberite Cape Minerals Google Search for Stoiberite Dakota Matrix Minerals Google Search for Stoiberite Excalibur Mineral Corp. Google Search for Stoiberite Exceptional Minerals Google Search for Stoiberite John Betts Fine Minerals Search for Stoiberite McDougall Minerals Google Search for Stoiberite Mineral News Website Link Rock and Mineral Shows Google Search for Stoiberite Weinrich Minerals, Inc. Google Search for Stoiberite Ask about Stoiberite here : Print or Cut-and-Paste your Stoiberite Specimen Label here :
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