Mineralogy Database

Chloromenite Mineral Data

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General Chloromenite Information

Help on Chemical  Formula: Chemical Formula: Cu9O2(SeO3)4Cl6
Help on Composition: Composition: Molecular Weight = 1,324.46 gm
   Copper    43.18 %  Cu   54.05 % CuO
   Selenium  23.85 %  Se   33.51 % SeO2
   Chlorine  16.06 %  Cl   16.06 % Cl
               -   %   Cl   -3.62 % -O=Cl2   
   Oxygen    16.91 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu9O2(SeO3)4Cl6
Help on Environment: Environment: Found in a fumarole.
Help on IMA Status: IMA Status: Approved IMA 1996 (Dana # Added)
Help on Locality: Locality: The Northern Breach of the Great Fissure Tolbachik eruption, Kamchatka Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name comes from chloros, green, and mene, moon, referring to the presence of essential selenium.
Help on Synonym: Synonym: IMA1996-048

Chloromenite Image

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  Chloromenite   Melanothallite

Comments: Olive green crystalline chloromenite on blue-green melanothallite.
Location: North Break, Second Cone of main fracture eruption, Tolbachik Volcano, Kamchatka District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Chloromenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.2489:1:2.072
Help on Cell Dimensions: Cell Dimensions: a = 14.11, b = 6.274, c = 13, Z = 2; beta = 113° V = 1,059.35 Den(Calc)= 4.15
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.45(1), 5.56(0.83), 11.29(0.63),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

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

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Physical Properties of Chloromenite

Help on Cleavage: Cleavage: {101} Perfect
Help on Color: Color: Tobacco green.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Plastic - Deforms like soft, plastic materials.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 1.5-2.5 - Hardness very near Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellowish green

Optical Properties of Chloromenite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.054 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2193,KC= 0.208
Ncalc = 1.86
Help on Optical Data: Optical Data: Biaxial (-), a=1.87, b=1.92, g=1.94, bire=0.0700

Calculated Properties of Chloromenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.83 gm/cc
note: Specific Gravity of Chloromenite =4.15 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEChloromenite = 38.99 barns/electron
U=PEChloromenite x rElectron Density= 149.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chloromenite is Not Radioactive

Chloromenite 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.10 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.10 Chloromenite! Cu9O2(SeO3)4Cl6 I2/m 2/m

Other Chloromenite Information

Help on References: References: NAME( CanMin, 8/99) PHYS. PROP.(AmMin, V84, p1464) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Chloromenite :
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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Dana No: Strunz No: 04.JG.10





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