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Bariandite Mineral Data + |
General Bariandite Information |
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| Al0.6V8O20·9(H2O) | |||
| Molecular Weight = 905.85 gm | |||
| Aluminum 1.79 % Al 3.38 % Al2O3 | |||
| Vanadium 44.99 % V 80.31 % V2O5 | |||
| Hydrogen 2.00 % H 17.90 % H2O | |||
| Oxygen 51.22 % O | |||
| ______ ______ | |||
| 100.00 % 101.59 % = TOTAL OXIDE | |||
| Al0.6V5+8O20·9(H2O) | |||
| U-V deposit in sandstone. | |||
| Approved IMA 1971 | |||
| Mounana, Gabon. Link to MinDat.org Location Data. | |||
| Named for Pierre Bariand (1933-), French mineralogist. | |||
Search for Bariandite Images | |||
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Bariandite Crystallography |
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| a:b:c =3.2231:1:8.0055 | |||
| a = 11.7, b = 3.63, c = 29.06, Z = 2; beta = 101.5° V = 1,209.43 Den(Calc)= 2.49 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c | |||
| By Intensity(I/Io): 14.2(1), 3.43(0.6), 3.48(0.6), | |||
Physical Properties of Bariandite |
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| [001] Perfect | |||
| Blue black. | |||
| 2.7 | |||
| Subopaque | |||
| Fibrous - Crystals made up of fibers. | |||
| Sub Metallic | |||
| black | |||
Optical Properties of Bariandite |
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| CI meas= 0.077 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.001 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.3414,KPDmeas= 0.3148,KC= 0.3409 |
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| Biaxial (?), a=1.85 | |||
| gray brown. | |||
| brown. | |||
| brown. | |||
Calculated Properties of Bariandite |
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relectron=2.43 gm/cc |
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| Fermion Index = 0.00137 Boson Index = 0.99863 |
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PEBariandite = 8.59 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bariandite is Not Radioactive |
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Bariandite Classification |
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| 47.3.2.4 (47)Vanadium Oxysalts | |||
| (47.3)(Hydrated) | |||
| (47.3.2)Dana Group | |||
| IV/G.11-10 IV - Oxides | |||
| IV/G - Vanadiumoxides (with V4+/5+) Layered vanadates. Typical Vanadiumbronzes | |||
| IV/G.11 - Bariandite - Corvusite-? series | |||
Other Bariandite Information |
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| NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | |||
| Links to other databases for Bariandite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Bariandite using: Visit our Advertisers for Bariandite : Translate Bariandite Mineral Data : Ask about Bariandite here : Print or Cut-and-Paste your Bariandite Specimen Label here :
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