Tetrarooseveltite Mineral Data + 
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- 38.4.5.1 Tetrarooseveltite BiAsO4 I 41/a 4/m
- VII/A.18-10 Gasparite-(Ce) CeAsO4 P 21/n 2/m
- VII/A.18-20 Rooseveltite BiAsO4 P 2/m 2/m
- VII/A.18-30 Tetrarooseveltite BiAsO4 I 41/a 4/m
- VII/A.18-40 Ximengite BiPO4 P 3121 3 2
General Tetrarooseveltite Information |
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 Chemical Formula: |
BiAsO4 | ||
| Composition: |
Molecular Weight = 347.90 gm | ||
| Bismuth 60.07 % Bi 66.97 % Bi2O3 | |||
| Arsenic 21.54 % As 33.03 % As2O5 | |||
| Oxygen 18.40 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Bi(AsO4) | ||
| Environment: |
Oxidation product found on fluorite-barite gange. | ||
| IMA Status: |
Approved IMA 1994 | ||
| Locality: |
Josef mine, Moldava deposit, Krune Hory Mountains, norhtwestern Bohemia, Czech Republic. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named as the tetragonal analog of rooseveltite. | ||
| Synonym: |
IMA1993-006 | ||
Tetrarooseveltite Image | |||
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Images:
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Tetrarooseveltite Crystallography |
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| Axial Ratios: |
a:c = 1:2.29891 | ||
| Cell Dimensions: |
a = 5.085, c = 11.69, Z = 4; V = 302.27 Den(Calc)= 7.64 | ||
| Crystal System: |
Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 41/a | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.066(1), 1.933(0.55), 2.546(0.12), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Tetrarooseveltite |
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| Color: |
Yellowish white, White. | ||
| Diaphaniety: |
Translucent | ||
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. | ||
| Habit: |
Powdery - Forms a loose, poorly-coherent pulverulent mass. | ||
| Hardness: |
2.5 - Finger Nail | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Earthy (Dull) | ||
| Streak: |
white | ||
Optical Properties of Tetrarooseveltite |
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| Gladstone-Dale: |
CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1571,KC= 0.156 |
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| Optical Data: |
Uniaxial (+), w=2.2, e=2.2, bire=0.0000. | ||
Calculated Properties of Tetrarooseveltite |
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| Electron Density: |
relectron=6.50 gm/cc |
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| Fermion Index |
Fermion Index = 0.00008 Boson Index = 0.99992 |
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| Photoelectric: |
PETetrarooseveltite =1,152.58 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tetrarooseveltite is Not Radioactive |
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Tetrarooseveltite Classification |
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| Dana Class: |
38.4.5.1 (38)Anhydrous Phosphates, etc | ||
| (38.4)A+ XO4 | |||
| (38.4.5)Dana Group | |||
| Strunz Class: |
VII/A.18-30 VII - Phosphates, Arsenates and Vanadates | ||
| VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of very big size: Ca, Na and andre | |||
| VII/A.18 - Gasparite series | |||
Other Tetrarooseveltite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.79,p1211,1994) OPTIC PROP.(Am.Min.,Vol.79,p1211,1994) | ||
| See Also: |
Links to other databases for Tetrarooseveltite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris Search for Tetrarooseveltite using: Visit our Advertisers for Tetrarooseveltite : Translate Tetrarooseveltite Mineral Data : Ask about Tetrarooseveltite here : Print or Cut-and-Paste your Tetrarooseveltite Specimen Label here :
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