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General Tolbachite Information |
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 Chemical Formula: |
CuCl2 | ||
| 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 | |||
| Empirical Formula: |
CuCl2 | ||
| Environment: |
In fumaroles associated with melanothallite. Alters quickly to eriochalcite. | ||
| IMA Status: |
Approved IMA 1983 | ||
| Locality: |
Tolbachik volcano, Kamchatka, Russia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
| Name Pronunciation: |
Tolbachite + Pronunciation  |
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| Synonym: |
ICSD 66645 | ||
| PDF 35-690 | |||
Tolbachite Image | |||
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Images:
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Tolbachite Crystallography |
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| Axial Ratios: |
a:b:c =2.0815:1:2.0604 | ||
| Cell Dimensions: |
a = 6.89, b = 3.31, c = 6.82, Z = 2; beta = 122.3° V = 131.47 Den(Calc)= 3.40 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 5.76(1), 2.915(0.35), 3.445(0.25), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Tolbachite |
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| Cleavage: |
{001} Perfect | ||
| Color: |
Brown, Golden brown. | ||
| Density: |
3.42 | ||
| Diaphaneity: |
Opaque | ||
| Habit: |
Deliquescent - Crystals absorb water from the air and melt or otherwise deteriorate. | ||
| Habit: |
Fibrous - Crystals made up of fibers. | ||
| Habit: |
Mossy - Like moss in form or appearance. | ||
Optical Properties of Tolbachite |
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| Optical Data: |
Biaxial (?) | ||
| Pleochroism (x): |
pale green. | ||
| Pleochroism (z): |
dark brown. | ||
Calculated Properties of Tolbachite |
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| Electron Density: |
Bulk Density (Electron Density)=3.19 gm/cc note: Specific Gravity of Tolbachite =3.40 gm/cc. |
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| Fermion Index: |
Fermion Index = 0 Boson Index = 1 |
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| Photoelectric: |
PETolbachite = 24.79 barns/electron U=PETolbachite x rElectron Density= 79.00 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tolbachite is Not Radioactive |
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Tolbachite Classification |
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| Dana Class: |
09.02.08.02 (09)Anhydrous and Hydrated Halides | ||
| (09.02)where A (X)2 | |||
| (09.02.08)Dana Group | |||
| Strunz Class: |
03.AB.05 03 - HALIDES | ||
| 03.A - Simple Halides, Without H2O | |||
| 03.AB -M:X = 1:2 | |||
Other Tolbachite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | ||
| 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 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Tolbachite using: Visit our Advertisers for Tolbachite : A Bijoux Google Search for TolbachiteAdam's Minerals Google Search for Tolbachite Cape Minerals Google Search for Tolbachite Dakota Matrix Minerals Google Search for Tolbachite Excalibur Mineral Corp. Google Search for Tolbachite Exceptional Minerals Google Search for Tolbachite John Betts Fine Minerals Search for Tolbachite McDougall Minerals Google Search for Tolbachite Mineral News Website Link Rock and Mineral Shows Google Search for Tolbachite Weinrich Minerals, Inc. Google Search for Tolbachite Ask about Tolbachite here : Print or Cut-and-Paste your Tolbachite Specimen Label here :
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