General Kapellasite Information Chemical Formula: |
Cu3Zn(OH)6Cl2 |
Composition: |
Molecular Weight = 428.99 gm |
|
Zinc 11.43 % Zn 14.23 % ZnO |
|
Copper 47.99 % Cu 60.08 % CuO |
|
Hydrogen 1.40 % H 12.47 % H2O |
|
Chlorine 17.02 % Cl 17.02 % Cl |
|
- %
Cl -3.84 % -O=Cl2 |
|
Oxygen 22.15 % O |
|
______ ______ |
|
100.00 % 99.96 % = TOTAL OXIDE |
Empirical Formula: |
Cu3.24Zn0.75(OH)5.94Cl2.06 |
Environment: |
Metastable polymorph of herbertsmithite. |
IMA Status: |
Approved IMA 2005 (Dana # Added) |
Locality: |
Sounion mine #19, Lavrion, Attica, Greece Link to MinDat.org Location Data. |
Name Origin: |
Named for Christo Kapellas (1938-2004), collector and mineral dealer from Kamariza, Lavrion, Greece. |
Synonym: |
IMA2005-009 |
| | Search for Kapellasite Images
Images:
|
|
| | Kapellasite Crystallography Axial Ratios: |
a:c = 1:0.90999 |
Cell Dimensions: |
a = 6.3, c = 5.733, Z = 1; V = 197.06 Den(Calc)= 3.61 |
Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1 |
X Ray Diffraction: |
By Intensity(I/Io): 5.73(1), 2.464(0.81), 2.73(0.39),1.976(0.32), 1.576(0.17), 2.761(0.12), 2.865(0.11), 1.519(0.1), |
Crystal Structure:
|
Mouse
|
| Physical Properties of Kapellasite Cleavage: |
{hk0} Good |
Color: |
Bluish green. |
Density: |
3.55 |
Diaphaneity: |
Transparent |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Luster: |
Vitreous (Glassy) |
Streak: |
ligth blue-green |
| Optical Properties of Kapellasite Gladstone-Dale: |
CI meas= 0.005 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2161,KPDmeas= 0.2197,KC= 0.2208 Ncalc = 1.78 - 1.8 Optical Data: |
Uniaxial (-), e=1.76, w=1.8, bire=0.0400. |
| Calculated Properties of Kapellasite Electron Density: |
Bulk Density (Electron Density)=3.39 gm/cc |
note: Specific Gravity of Kapellasite =3.55 gm/cc. Fermion Index: |
Fermion Index = 0.0047956108 |
Boson Index = 0.9952043892 Photoelectric: |
PEKapellasite = 28.04 barns/electron |
U=PEKapellasite x rElectron Density= 95.10 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Kapellasite is Not Radioactive | Kapellasite Classification Dana Class: |
10.01.02.04 (10)Oxyhalides and Hydroxyhalides |
|
(10.01)where (A)2 (O,OH)3 Xq |
|
(10.01.02)Paratacamite Group |
|
|
|
|
Strunz Class: |
03.DA.10c 03 - HALIDES |
|
03.D - Oxyhalides, Hydroxyhalides and Related Double Halides |
|
03.DA -With Cu, etc., without Pb |
|
|
|
|
|
| Other Kapellasite Information References: |
NAME( MinMag, v70:329) PHYS. PROP.(MinMag, v70:329) OPTIC PROP.(MinMag, v70:329) |
See Also: |
Links to other databases for Kapellasite : |
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 Search for Kapellasite using: Visit our Advertisers for Kapellasite : A Bijoux Google Search for KapellasiteAdam's Minerals Google Search for Kapellasite Cape Minerals Google Search for Kapellasite Dakota Matrix Minerals Google Search for Kapellasite Excalibur Mineral Corp. Google Search for Kapellasite Exceptional Minerals Google Search for Kapellasite John Betts Fine Minerals Search for Kapellasite McDougall Minerals Google Search for Kapellasite Mineral News Website Link Rock and Mineral Shows Google Search for Kapellasite Weinrich Minerals, Inc. Google Search for Kapellasite Ask about Kapellasite here : Print or Cut-and-Paste your Kapellasite Specimen Label here :
| |
|
| |