Mineralogy Database

Tetrarooseveltite Mineral Data

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General Tetrarooseveltite Information

Help on Chemical  Formula: Chemical Formula: BiAsO4
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Bi(AsO4)
Help on Environment: Environment: Oxidation product found on fluorite-barite gange.
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: Josef mine, Moldava deposit, Krune Hory Mountains, norhtwestern Bohemia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the tetragonal analog of rooseveltite.
Help on Name Pronunciation: Name Pronunciation: Tetrarooseveltite + Pronunciation Say TETRAROOSEVELTITE
Help on Synonym: Synonym: IMA1993-006

Tetrarooseveltite Image

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Comments: Light-yellow, earthy tetrarooseveltite.
Location: Moldava, Teplice (Teplitz), Krusné Hory (Erzgebirge), Severoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 4.5 mm.
© Thomas Witzke / Abraxas-Verlag

Tetrarooseveltite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.29891
Help on Cell Dimensions: Cell Dimensions: a = 5.085, c = 11.69, Z = 4; V = 302.27 Den(Calc)= 7.64
Help on Crystal System: Crystal System: Tetragonal - Dipyramidal H-M Symbol (4/m) Space Group: I 41/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.066(1), 1.933(0.55), 2.546(0.12),

Physical Properties of Tetrarooseveltite

Help on Color: Color: Yellowish white, White.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Powdery - Forms a loose, poorly-coherent pulverulent mass.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white

Optical Properties of Tetrarooseveltite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1571,KC= 0.156
Ncalc = 2.19
Help on Optical Data: Optical Data: Uniaxial (+), w=2.2, e=2.2, bire=0.0000.

Calculated Properties of Tetrarooseveltite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.50 gm/cc
note: Specific Gravity of Tetrarooseveltite =7.64 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0000888987
Boson Index = 0.9999111013
Help on Photoelectric: Photoelectric: PETetrarooseveltite =1,152.58 barns/electron
U=PETetrarooseveltite x rElectron Density=7,492.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tetrarooseveltite is Not Radioactive

Tetrarooseveltite Classification

Help on  Dana Class: Dana Class: (38)Anhydrous Phosphates, etc
  (38.04)A+ XO4
  (38.04.05)Dana Group Tetrarooseveltite BiAsO4 I 41/a 4/m
Help on  Strunz Class: Strunz Class: 08.AD.55 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AD -With only large cations
08.AD.55 Tetrarooseveltite BiAsO4 I 41/a 4/m

Other Tetrarooseveltite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.79,p1211,1994) OPTIC PROP.(Am.Min.,Vol.79,p1211,1994)
Help on See Also: See Also: Links to other databases for Tetrarooseveltite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 08.AD.55





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