Tolbachite Mineral Data

Tolbachite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Crystalarium.com
[Minerals] [Gems] [Sale Items] [Gold Rings] [Big Stuff] [Main Page]
Shop early for Holiday Season and get the best stuff.
You can put it on layaway for up to six weeks!


General Tolbachite Information

Help on Chemical Formula: Chemical Formula: CuCl2
Help on Composition: Composition: Molecular Weight = 134.45 gm
   Copper    47.26 %  Cu   59.16 % CuO
   Chlorine  52.74 %  Cl   52.74 % Cl
               -   %  Cl  -11.90 % -O=Cl2   
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuCl2
Help on Environment: Environment: In fumaroles associated with melanothallite. Alters quickly to eriochalcite.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Tolbachik volcano, Kamchatka, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tolbachite + Pronunciation Say TOLBACHITE
Help on Synonym: Synonym: ICSD 66645
  PDF 35-690
 

Tolbachite Image

Click Here for Larger Tolbachite Image in a New Browser Window Images:
Click Here for Larger Tolbachite Image

Tolbachite

Comments: Small orange-brownish crystals of tolbachite.
Location: Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 2.5 mm.
© Thomas Witzke / Abraxas-Verlag

Tolbachite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.0815:1:2.0604
Help on Cell Dimensions: Cell Dimensions: a = 6.89, b = 3.31, c = 6.82, Z = 2; beta = 122.3° V = 131.47 Den(Calc)= 3.40
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.76(1), 2.915(0.35), 3.445(0.25),
Click Here for Large Tolbachite Structure Window 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


Burns P C , Hawthorne F C , American Mineralogist , 78 (1993) p.187-189, Tolbachite, CuCl2, the first example of Cu2+ octahedrally coordinated by Cl

 

Physical Properties of Tolbachite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Brown, Golden brown.
Help on Density: Density: 3.42
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Deliquescent - Crystals absorb water from the air and melt or otherwise deteriorate.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Mossy - Like moss in form or appearance.
 

Optical Properties of Tolbachite

Help on Optical Data: Optical Data: Biaxial (?)
Help on Pleochroism (x): Pleochroism (x): pale green.
Help on Pleochroism (z): Pleochroism (z): dark brown.
 

Calculated Properties of Tolbachite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Tolbachite =3.40 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PETolbachite = 24.79 barns/electron
U=PETolbachite x rElectron Density= 79.00 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tolbachite is Not Radioactive
 

Tolbachite Classification
Help on Dana Class: Dana Class: 09.02.08.02 (09)Anhydrous and Hydrated Halides
  (09.02)where A (X)2
  (09.02.08)Dana Group
 
09.02.08.01 Eriochalcite CuCl2•2(H2O) Pbmn 2/m 2/m 2/m
 
09.02.08.02 Tolbachite CuCl2 C 2/m 2/m
Help on Strunz Class: Strunz Class: 03.AB.05 03 - HALIDES
  03.A - Simple Halides, Without H2O
  03.AB -M:X = 1:2
 
03.AB.05 Tolbachite CuCl2 C 2/m 2/m
 

Other Tolbachite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Tolbachite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Tolbachite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Tolbachite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Tolbachite Mineral Data :

Ask about Tolbachite 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 Espaņol

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

Tolbachite

CuCl2
Dana No: 09.02.08.02 Strunz No: 03.AB.05
Locality:

 

Notes: