Hechtsbergite  Mineral Data

Hechtsbergite Mineral Data

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General Hechtsbergite Information

Help on Chemical  Formula: Chemical Formula: Bi2O(OH)(VO4)
Help on Composition: Composition: Molecular Weight = 565.91 gm
   Vanadium   9.00 %  V    16.07 % V2O5
   Bismuth   73.86 %  Bi   82.34 % Bi2O3
   Hydrogen   0.18 %  H     1.59 % H2O
   Oxygen    16.96 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi2O(OH)(VO4)
Help on Environment: Environment: In minute cavities in gneiss quarried for road-building material. The vanadium-dominant analog of atelestite and, probably, smrkovecite.
Help on IMA Status: IMA Status: Approved IMA 1995 (Dana # Added)
Help on Locality: Locality: Hechtsberg quarry at Hausach, Black Forest, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Name Pronunciation: Name Pronunciation: Hechtsbergite + Pronunciation Say HECHTSBERGITE
Help on Synonym: Synonym: ICSD 85180
  IMA1995-050
 

Hechtsbergite Image

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Hechtsbergite

Comments: Light brownish crystals of hechtsbergite in matrix.
Location: Hechtsberg Quarry, Hausach, Kinzig Valley, Black Forest, Baden-Württemberg, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Hechtsbergite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9012:1:1.444
Help on Cell Dimensions: Cell Dimensions: a = 6.791, b = 7.535, c = 10.881, Z = 4; beta = 107° V = 532.45 Den(Calc)= 7.06
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.267(1), 3.15(0.62), 4.279(0.38),
Help on Forms: Forms:

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Forms: ( 3 0 2) ( 0 0 1) ( 1 1 3) ( 1 1 1)

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Krause W , Bernhardt H J , Blass G , Effenberger H , Graf H W , Neues Jahrbuch fur Mineralogie, Monatshefte , 1997 (1997) p.271-287, Hechtsbergite, Bi2O(OH)(VO4), a new mineral from the Black Forest, Germany, Locality: Hechtsberg quarry, Hausach, Black Forest, Germany

 

Physical Properties of Hechtsbergite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown.
Help on Density: Density: 6.87
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: yellow
 

Optical Properties of Hechtsbergite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1808,KPDmeas= 0.1858,KC= 0.186
Ncalc = 2.28 - 2.31
Help on Optical Data: Optical Data: Biaxial (+), a=2.26, b=2.27, g=2.3, bire=0.0400
 

Calculated Properties of Hechtsbergite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.78 gm/cc
note: Specific Gravity of Hechtsbergite =6.87 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0003074733
Boson Index = 0.9996925267
Help on Photoelectric: Photoelectric: PEHechtsbergite =1,415.05 barns/electron
U=PEHechtsbergite x rElectron Density=8,176.95 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hechtsbergite is Not Radioactive
 

Hechtsbergite Classification

Help on  Dana Class: Dana Class: 41.11.06.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.11)with miscellaneous formulae
  (41.11.06)Smrkovecite Group
 
41.11.06.01 Smrkovecite! Bi2O(OH)(PO4) P 21/c 2/m
 
41.11.06.02 Hechtsbergite! Bi2O(OH)(VO4) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 08.BO.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BO -With only large cations, (OH, etc.):RO4 ³ 1:1
 
08.BO.15 Atelestite Bi8(AsO4)3(OH)5O5 P 21/a 2/m
 
08.BO.15 Hechtsbergite! Bi2O(OH)(VO4) P 21/c 2/m
 
08.BO.15 Smrkovecite! Bi2O(OH)(PO4) P 21/c 2/m
 

Other Hechtsbergite Information

Help on References: References: NAME( AmMin) PHYS. PROP.(Am.Min.,Vol.83,p400,1998) OPTIC PROP.(AmMin)
Help on See Also: See Also: Links to other databases for Hechtsbergite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Print or Cut-and-Paste your Hechtsbergite Specimen Label here :

Hechtsbergite

Bi2O(OH)(VO4)
Dana No: 41.11.06.02 Strunz No: 08.BO.15
Locality:

 

Notes: