Mineralogy Database

Preisingerite Mineral Data

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General Preisingerite Information

Help on Chemical  Formula: Chemical Formula: Bi3(AsO4)2O(OH)
Help on Composition: Composition: Molecular Weight = 937.79 gm
   Bismuth   66.85 %  Bi   74.53 % Bi2O3
   Arsenic   15.98 %  As   24.51 % As2O5
   Hydrogen   0.11 %  H     0.96 % H2O
   Oxygen    17.06 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi3(AsO4)2O(OH)
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Cerro Negro de la Aguadita, Caliugasta, and San Francisco de los Andes, San Juan, Argentina Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Anton Preisinger (1925-), Mineralogist, University of Technology, Vienna.
Help on Name Pronunciation: Name Pronunciation: Preisingerite + Pronunciation Say PREISINGERITE
Help on Synonym: Synonym: ICSD 31179
  PDF 35-543

Preisingerite Image

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Comments: Olive-greenish crystals of preisingerite on quartz.
Location: Pucher Shaft, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Preisingerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3496:1:0.9369
Help on Cell Dimensions: Cell Dimensions: a = 9.993, b = 7.404, c = 6.937, Z = 2; alpha = 87.82°, beta = 115.01°, gamma = 111.07° V = 433.72 Den(Calc)= 7.18
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.28(1), 3.263(0.97), 3.194(0.87),

Physical Properties of Preisingerite

Help on Cleavage: Cleavage: None
Help on Color: Color: Gray white, Yellow gray.
Help on Density: Density: 7.24
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 3-4 - Calcite-Fluorite
Help on Luster: Luster: Subadamantine
Help on Streak: Streak: white

Optical Properties of Preisingerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1605,KPDmeas= 0.1605,KC= 0.157
Ncalc = 2.14
Help on Optical Data: Optical Data: Biaxial (?), a=2.13, b=2.16, g=2.195, bire=0.0650, 2V(Calc)=88, 2V(Meas)=90.

Calculated Properties of Preisingerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.11 gm/cc
note: Specific Gravity of Preisingerite =7.24 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0000827217
Boson Index = 0.9999172783
Help on Photoelectric: Photoelectric: PEPreisingerite =1,286.16 barns/electron
U=PEPreisingerite x rElectron Density=7,864.22 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Preisingerite is Not Radioactive

Preisingerite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.10)where (A++ B++)3 (XO4)2 Zq
  (41.10.09)Preisingerite Group Preisingerite Bi3(AsO4)2O(OH) P1 1 Schumacherite Bi3[(V,As,P)O4]2O(OH) P1 1
Help on  Strunz Class: Strunz Class: 08.BO.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BO -With only large cations, (OH, etc.):RO4 � 1:1
08.BO.10 Preisingerite Bi3(AsO4)2O(OH) P1 1
08.BO.10 Petitjeanite Bi3(PO4)2O(OH) P1 1
08.BO.10 Schumacherite Bi3[(V,As,P)O4]2O(OH) P1 1

Other Preisingerite Information

Help on References: References: NAME( Dana8) 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 Preisingerite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 08.BO.10





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