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Aurivilliusite Mineral Data

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General Aurivilliusite Information

Help on Chemical  Formula: Chemical Formula: Hg+Hg++OI
Help on Composition: Composition: Molecular Weight = 541.59 gm
   Mercury   74.07 %  Hg   38.51 % Hg2O / 39.99 % HgO
   Iodine    22.73 %  I    22.73 % I
               -   %   I    -1.43 % -O=I2    
   Bromine    0.15 %  Br    0.15 % Br
               -   %   Br   -0.01 % -O=Br2   
   Chlorine   0.07 %  Cl    0.07 % Cl
               -   %   Cl   -0.01 % -O=Cl2   
   Oxygen     2.98 %  O
            ______        ______ 
            100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: HgHgO1.01I0.97Br0.01Cl0.01
Help on Environment: Environment: In a cm-wide quartz vein with other mercury compounds. Related to terlinguaite; new structure type.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: A small prospect pit near the long-abandoned Clear Creek mercury mine, New Idria district, San Benito County, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Karin Aurivillius (1920-1982), chemist-crystallographer at the University of Lund, Sweden, who determined the crystal structure of numerous synthetic Hg compounds.
Help on Synonym: Synonym: IMA2002-022

Aurivilliusite Image

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Comments: Dark reddish brown aurivilliusite-bearing ‘splattered’ patch on quartz.
Location: Clear Creek claim, San Benito County, California, USA. Scale: See Image.
© Mineralogical Magazine

Aurivilliusite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.5189:1:0.959
Help on Cell Dimensions: Cell Dimensions: a = 17.58, b = 6.979, c = 6.693, Z = 8; beta = 101.71° V = 804.08 Den(Calc)= 8.95
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.275(1)(002), 2.873(0.8)(600), 2.993(0.8)(221),8.547(0.7)(200), 1.878(0.5)(223), 2.404(0.5)(602,421,222),

Physical Properties of Aurivilliusite

Help on Cleavage: Cleavage: {100} Distinct
Help on Color: Color: Dark gray black.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Luster: Luster: Metallic
Help on Streak: Streak: dark red brown

Optical Properties of Aurivilliusite

Help on Optical Data: Optical Data: NCalc= 2.4 - from Gladstone-Dale relationship (KC = 0.1568) where Ncalc=Dcalc*KC+1
Help on RL Color: RL Color: Resembles cinnabar, light sensitive, no internal reflections, shows red light coalescing phenomenon.

Calculated Properties of Aurivilliusite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.27 gm/cc
note: Specific Gravity of Aurivilliusite =8.95 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.22
Boson Index = 0.78
Help on Photoelectric: Photoelectric: PEAurivilliusite =1,384.79 barns/electron
U=PEAurivilliusite x rElectron Density=10069.53 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Aurivilliusite is Not Radioactive

Aurivilliusite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.04)where (A)2 (O,OH) Xq
  (10.04.02)Terlinguaite Group Terlinguaite HgHgClO C 2/c 2/m Aurivilliusite! HgHgOI C 2/m 2/m
Help on  Strunz Class: Strunz Class: 03.DD.50 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DD -With Hg
03.DD.50 Aurivilliusite! HgHgOI C 2/m 2/m

Other Aurivilliusite Information

Help on References: References: NAME( CanMin, 42:1904) PHYS. PROP.(CanMin, 42:1904) OPTIC PROP.(CanMin, 42:1904)
Help on See Also: See Also: Links to other databases for Aurivilliusite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 03.DD.50





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