Mineralogy Database

Parageorgbokiite Mineral Data

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General Parageorgbokiite Information

Help on Chemical  Formula: Chemical Formula: Cu5O2(SeO3)2Cl2
Help on Composition: Composition: Molecular Weight = 674.55 gm
   Copper    47.10 %  Cu   58.96 % CuO
   Selenium  23.41 %  Se   32.90 % SeO2
   Chlorine  10.51 %  Cl   10.51 % Cl
               -   %   Cl   -2.37 % -O=Cl2   
   Oxygen    18.97 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu5O2(SeO3)2Cl2
Help on Environment: Environment: Found in fumaroles of the Great Fissure Talbachik eruption. Dimorphous with georgbokiite.
Help on IMA Status: IMA Status: Approved IMA 2006 (Dana # Added)
Help on Locality: Locality: Tolbachik volcano, Kamchatka Peninsula, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the lower density form of georgbokite.
Help on Synonym: Synonym: IMA2006-001

Parageorgbokiite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6702:1:1.3816
Help on Cell Dimensions: Cell Dimensions: a = 5.3982, b = 8.0543, c = 11.128, Z = 2; beta = 99.258° V = 477.53 Den(Calc)= 4.69
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.22(1), 3.01(1), 2.61(0.8),2.27(0.7), 2.117(0.6), 1.953(0.4), 1.482(0.4), 1.406(0.4),

Physical Properties of Parageorgbokiite

Help on Color: Color: Green.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).

Optical Properties of Parageorgbokiite

Help on Optical Data: Optical Data: Biaxial (+/-)
  NCalc= 1.93 - from Gladstone-Dale relationship (KC = 0.1976) where Ncalc=Dcalc*KC+1

Calculated Properties of Parageorgbokiite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.32 gm/cc
note: Specific Gravity of Parageorgbokiite =4.69 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEParageorgbokiite = 40.09 barns/electron
U=PEParageorgbokiite x rElectron Density= 173.37 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Parageorgbokiite is Not Radioactive

Parageorgbokiite Classification

Help on  Dana Class: Dana Class: (34)Selenites - Tellurites - Sulfites
  (34.06)Dana Type
  (34.06.07)Chloromenite Group Chloromenite! Cu9O2(SeO3)4Cl6 I2/m 2/m Georgbokiite! Cu5O2(SeO3)2Cl2 P 21/c 2/m Parageorgbokiite! Cu5O2(SeO3)2Cl2 P 21/c 2/m
Help on  Strunz Class: Strunz Class: 04.JG.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JG -Selenites with additional anions, without H2O
04.JG.05 Georgbokiite! Cu5O2(SeO3)2Cl2 P 21/c 2/m
04.JG.05 Parageorgbokiite! Cu5O2(SeO3)2Cl2 P 21/c 2/m

Other Parageorgbokiite Information

Help on References: References: NAME( AmMin, v93:704) PHYS. PROP.(AmMin, v93:704) OPTIC PROP.(AmMin, v93:704)
Help on See Also: See Also: Links to other databases for Parageorgbokiite :
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: 04.JG.05





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