General Clinoatacamite Information![]() Cu2(OH)3Cl |
![]() Molecular Weight = 213.57 gm |
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Copper 59.51 % Cu 74.49 % CuO |
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Hydrogen 1.42 % H 12.65 % H2O |
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Chlorine 16.60 % Cl 16.60 % Cl |
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Cl -3.75 % -O=Cl2 |
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Oxygen 22.47 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Cu2(OH)3Cl |
![]() Secondary alteration product of copper ores. |
![]() Approved IMA 1996 (Dana # Added) |
![]() Chuquicamata, Chile. Link to MinDat.org Location Data. |
![]() For the relationship to atacamite and paratacamite. Atacamite is named after the Atacam desert province in northern Chile. |
![]() ICSD 82485 |
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IMA1993-060 |
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PDF 25-1427 |
| | Clinoatacamite Image
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Clinoatacamite Crystallography![]() a:b:c =0.9035:1:1.336 |
![]() a = 6.157, b = 6.814, c = 9.104, Z = 4; beta = 99.65° V = 376.54 Den(Calc)= 3.77 |
![]() Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n |
![]() By Intensity(I/Io): 5.47(1), 2.742(0.7), 2.767(0.6), |
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| Physical Properties of Clinoatacamite![]() {012} Perfect |
![]() Green, Dark greenish black, Greenish blue. |
![]() 3.71 |
![]() Transparent to translucent |
![]() Brittle - Generally displayed by glasses and most non-metallic minerals. |
![]() Crystalline - Fine - Occurs as well-formed fine sized crystals. |
![]() 3 - Calcite |
![]() Non-fluorescent. |
![]() Adamantine |
![]() greenish white |
| Optical Properties of Clinoatacamite![]() CI meas= -0.036 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.019 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2263,KPDmeas= 0.23,KC= 0.2221 Ncalc = 1.82 - 1.84 ![]() Biaxial (-), a=1.83, b=1.85, g=1.88, bire=0.0500, 2V(Calc)=80, 2V(Meas)=75. Dispersion strong, r < v. |
| Calculated Properties of Clinoatacamite![]() Bulk Density (Electron Density)=3.60 gm/cc |
note: Specific Gravity of Clinoatacamite =3.77 gm/cc. ![]() Fermion Index = 0.0001100017 |
Boson Index = 0.9998899983 ![]() PEClinoatacamite = 27.37 barns/electron |
U=PEClinoatacamite x rElectron Density= 98.57 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Clinoatacamite is Not Radioactive | Clinoatacamite Classification![]() 10.01.02.02 (10)Oxyhalides and Hydroxyhalides |
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(10.01)where (A)2 (O,OH)3 Xq |
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(10.01.02)Paratacamite Group |
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![]() 03.DA.10b 03 - HALIDES |
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03.D - Oxyhalides, Hydroxyhalides and Related Double Halides |
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03.DA -With Cu, etc., without Pb |
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| Other Clinoatacamite Information![]() NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,p1282,1996) OPTIC PROP.(MinRec) |
![]() Links to other databases for Clinoatacamite : |
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 13 - WWW-MINCRYST Search for Clinoatacamite using: Visit our Advertisers for Clinoatacamite : A Bijoux Google Search for ClinoatacamiteAdam's Minerals Google Search for Clinoatacamite Cape Minerals Google Search for Clinoatacamite Dakota Matrix Minerals Google Search for Clinoatacamite Excalibur Mineral Corp. Google Search for Clinoatacamite Exceptional Minerals Google Search for Clinoatacamite John Betts Fine Minerals Search for Clinoatacamite McDougall Minerals Google Search for Clinoatacamite Mineral News Website Link Rock and Mineral Shows Google Search for Clinoatacamite Weinrich Minerals, Inc. Google Search for Clinoatacamite Ask about Clinoatacamite here : Print or Cut-and-Paste your Clinoatacamite Specimen Label here :
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