Hechtsbergite Mineral Data

General Hechtsbergite Information

Chemical Formula: Bi2O(OH)(VO4) 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 Empirical Formula: Bi₂O(OH)(VO₄) Environment: In minute cavities in gneiss quarried for road-building material. The vanadium-dominant analog of atelestite and, probably, smrkovecite. IMA Status: Approved IMA 1995 (Dana # Added) Locality: Hechtsberg quarry at Hausach, Black Forest, Germany. Link to MinDat.org Location Data. Name Origin: Named after the locality. Name Pronunciation: Hechtsbergite + Pronunciation Synonym: ICSD 85180   IMA1995-050  

Hechtsbergite Image

Images:

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

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

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 3 0 2) ( 0 0 1) ( 1 1 3) ( 1 1 1) Warning: this large pop-up is very compute intensive and may not work well with some computers.

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

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

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

Optical Properties of Hechtsbergite

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 Optical Data: Biaxial (+), a=2.26, b=2.27, g=2.3, bire=0.0400  

Calculated Properties of Hechtsbergite

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

Hechtsbergite Classification

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

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

References: NAME( AmMin) PHYS. PROP.(Am.Min.,Vol.83,p400,1998) OPTIC PROP.(AmMin) 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
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Hechtsbergite :

A Bijoux Google Search for Hechtsbergite
Adam's Minerals Google Search for Hechtsbergite
Cape Minerals Google Search for Hechtsbergite
Dakota Matrix Minerals Google Search for Hechtsbergite
Excalibur Mineral Corp. Google Search for Hechtsbergite
Exceptional Minerals Google Search for Hechtsbergite
John Betts Fine Minerals Search for Hechtsbergite
McDougall Minerals Google Search for Hechtsbergite
Mineral News Website Link
Rock and Mineral Shows Google Search for Hechtsbergite
Weinrich Minerals, Inc. Google Search for Hechtsbergite

Ask about Hechtsbergite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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