General Vergasovaite Information Chemical Formula: |
Cu3O[(Mo,S)O4][SO4] |
Composition: |
Molecular Weight = 443.69 gm |
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Zinc 1.47 % Zn 1.83 % ZnO |
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Copper 40.10 % Cu 50.20 % CuO |
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Molybdenum 17.30 % Mo 25.95 % MoO3 |
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Sulfur 8.67 % S 21.65 % SO3 |
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Oxygen 32.45 % O |
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______ ______ |
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100.00 % 99.64 % = TOTAL OXIDE |
Empirical Formula: |
Cu2.8Zn0.1O(MoO4)0.8(SO4)1.2 |
Environment: |
Found in a fumarole. |
IMA Status: |
Approved IMA 1999 (Dana # Added) |
Locality: |
North Breach of the Main Tolbachik fissure eruption, Kamchatka Peninsula, Russia. Link to MinDat.org Location Data. |
Name Origin: |
Named after Lidiya Pavlovna Vergasova (b. 1941), of the Institute of Volcanology, Russian Academy of Sciences, Petropavlovsk, Russia, |
Synonym: |
IMA1998-009 |
| | Vergasovaite Image
Images:
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Vergasovaite Crystallography Axial Ratios: |
a:b:c =1.1007:1:2.0097 |
Cell Dimensions: |
a = 7.42, b = 6.741, c = 13.548, Z = 4; V = 677.65 Den(Calc)= 4.35 |
Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P nma |
X Ray Diffraction: |
By Intensity(I/Io): 3.077(1)(104), 3.591(0.6)(020), 2.275(0.6)(124),2.5(0.6)(220), 2.542(0.6)(105,123), 3.342(0.6)(113), 3.391(0.6), |
Crystal Structure:
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Mouse
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| Physical Properties of Vergasovaite Cleavage: |
None |
Color: |
Olive green. |
Diaphaneity: |
Transparent |
Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
Habit: |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
Hardness: |
4-5 - Fluorite-Apatite |
Luster: |
Vitreous (Glassy) |
Streak: |
light yellow |
| Optical Properties of Vergasovaite Gladstone-Dale: |
CI calc= -0.131 (Poor) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.2126,KC= 0.1881 Ncalc = 1.82 Optical Data: |
Biaxial (?), a=1.87, g=1.98, bire=0.1100 |
RL Color: |
Gray with light green to colorless internal reflections. |
| Calculated Properties of Vergasovaite Electron Density: |
Bulk Density (Electron Density)=4.10 gm/cc |
note: Specific Gravity of Vergasovaite =4.35 gm/cc. Fermion Index: |
Fermion Index = 0.04 |
Boson Index = 0.96 Photoelectric: |
PEVergasovaite = 47.30 barns/electron |
U=PEVergasovaite x rElectron Density= 193.85 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Vergasovaite is Not Radioactive | Vergasovaite Classification Dana Class: |
48.04.03.01 (48)Anhydrous Molybdates and Tungstates |
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(48.04)with miscellaneous formulae |
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(48.04.03)Vergasovaite Series |
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Strunz Class: |
07.BB.30 07 - SULFATES (SELENATES, TELLURATES) |
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07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O |
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07.BB -With medium-sized cations |
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| Other Vergasovaite Information References: |
NAME( CanMin, 8/99) PHYS. PROP.(AmMin, V85, p264) OPTIC PROP.(AmMin, V85, p264) |
See Also: |
Links to other databases for Vergasovaite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Vergasovaite using: Visit our Advertisers for Vergasovaite : A Bijoux Google Search for VergasovaiteAdam's Minerals Google Search for Vergasovaite Cape Minerals Google Search for Vergasovaite Dakota Matrix Minerals Google Search for Vergasovaite Excalibur Mineral Corp. Google Search for Vergasovaite Exceptional Minerals Google Search for Vergasovaite John Betts Fine Minerals Search for Vergasovaite McDougall Minerals Google Search for Vergasovaite Mineral News Website Link Rock and Mineral Shows Google Search for Vergasovaite Weinrich Minerals, Inc. Google Search for Vergasovaite Ask about Vergasovaite here : Print or Cut-and-Paste your Vergasovaite Specimen Label here :
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