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Arsenbrackebuschite Mineral Data

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General Arsenbrackebuschite Information

Help on Chemical  Formula: Chemical Formula: Pb2(Fe++,Zn)(AsO4)2•(H2O)
Help on Composition: Composition: Molecular Weight = 768.49 gm
   Zinc       2.13 %  Zn    2.65 % ZnO
   Iron       5.45 %  Fe    7.01 % FeO
   Arsenic   19.50 %  As   29.91 % As2O5
   Hydrogen   0.26 %  H     2.34 % H2O
   Lead      53.92 %  Pb   58.09 % PbO
   Oxygen    18.74 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2Fe2+0.75Zn0.25(AsO4)2•(H2O)
Help on Environment: Environment: Occurs in fissures in solomite breccia in the oxidized zone of a dolostone-hosted hydrothermal polymetallic ore deposit (Tsumeb, Namibia); in a hydrothermal polymetallic barite-fluo rite deposit (Clara-mine, Germany).
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: From Tsumeb, Namibia. In the Clara mine, near Oberwolfach, Black Forest, Germany. From Brixlegg, Tirol, Austria. At the Hornet mine, Hachita, Grant Co., New Mexico, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: As the arsenate analog of "brackebuschite."
Help on Name Pronunciation: Name Pronunciation: Arsenbrackebuschite + Pronunciation Say ARSENBRACKEBUSCHITE
Help on Synonym: Synonym: ICSD 100411
  PDF 29-1428

Arsenbrackebuschite Image

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Comments: Brownish yellow arsenbrakenbuschite crystals on matrix.
Location: Tsumeb, Namibia.. Scale: Not Given.
© William Pinch

Arsenbrackebuschite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.2843:1:1.4924
Help on Cell Dimensions: Cell Dimensions: a = 7.764, b = 6.045, c = 9.022, Z = 2; beta = 112.5° V = 391.20 Den(Calc)= 6.52
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3(1), 3.27(1), 2.78(0.9),

Physical Properties of Arsenbrackebuschite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Honey yellow.
Help on Density: Density: 6.54
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: brownish yellow

Optical Properties of Arsenbrackebuschite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.015 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1534,KPDmeas= 0.1529,KC= 0.151
Ncalc = 1.98 - 1.99
Help on Optical Data: Optical Data: Biaxial (-), b=2

Calculated Properties of Arsenbrackebuschite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.63 gm/cc
note: Specific Gravity of Arsenbrackebuschite =6.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.12
Boson Index = 0.88
Help on Photoelectric: Photoelectric: PEArsenbrackebuschite = 978.62 barns/electron
U=PEArsenbrackebuschite x rElectron Density=5,513.31 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Arsenbrackebuschite is Not Radioactive

Arsenbrackebuschite Classification

Help on  Dana Class: Dana Class: (40)Hydrated Phosphates, etc
  (40.02)where A++ (B++)2 (XO4) � x(H2O)
  (40.02.08)Brackebushite Group Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m
Help on  Strunz Class: Strunz Class: 08.BG.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BG -With medium-sized and large cations, (OH, etc.):RO4 = 0.5:1
08.BG.05 Arsenbrackebuschite Pb2(Fe,Zn)(AsO4)2•(H2O) P 21/m 2/m
08.BG.05 Bearthite Ca2Al(PO4)2(OH) P 21/m 2/m
08.BG.05 Arsentsumebite Pb2Cu(AsO4)(SO4)(OH) P 21/m 2/m
08.BG.05 Brackebuschite Pb2(Mn,Fe)(VO4)2(OH) P 21/m 2/m
08.BG.05 Feinglosite! Pb2(Zn,Fe)[(As,S)O4]2•(H2O) P 21,P 21/m Mono
08.BG.05 Gamagarite Ba2(Fe,Mn)(VO4)2(OH) P 21/m 2/m
08.BG.05 Goedkenite (Sr,Ca)2Al(PO4)2(OH) P 21/m 2/m
08.BG.05 Tsumebite Pb2Cu(PO4)(SO4)(OH) P 21/m 2/m
08.BG.05 Calderonite! Pb2Fe(VO4)2(OH) P 21/m 2/m
08.BG.05 Bushmakinite! Pb2Al(PO4)(VO4)(OH) P 21/m 2/m
08.BG.05 Tokyoite! Ba2Mn(VO4)2(OH) P 21/m 2/m

Other Arsenbrackebuschite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Arsenbrackebuschite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
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.BG.05





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