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Clinoclase Mineral Data + |
General Clinoclase Information |
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| Cu3(AsO4)(OH)3 | |||
| Molecular Weight = 380.58 gm | |||
| Copper 50.09 % Cu 62.70 % CuO | |||
| Arsenic 19.69 % As 30.20 % As2O5 | |||
| Hydrogen 0.79 % H 7.10 % H2O | |||
| Oxygen 29.43 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Cu3(AsO4)(OH)3 | |||
| Valid Species (Pre-IMA) 1868 | |||
| Link to MinDat.org Location Data. | |||
| From the Greek, klineis - "to incline" and klas - "to break." | |||
| ICSD 68456 | |||
| PDF 42-1357 | |||
Clinoclase Image | |||
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Clinoclase Crystallography |
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| a:b:c =1.9259:1:1.1219 | |||
| a = 12.48, b = 6.48, c = 7.27, Z = 4; beta = 80.5° V = 579.86 Den(Calc)= 4.36 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a | |||
| By Intensity(I/Io): 3.587(1), 3.139(0.25), 7.21(0.2), | |||
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Physical Properties of Clinoclase |
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| [001] Perfect | |||
| Dark verdigris green, Blackish blue green, Blackish green. | |||
| 4.19 - 4.4, Average = 4.29 | |||
| Subtransparent to translucent | |||
| Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | |||
| Encrustations - Forms crust-like aggregates on matrix. | |||
| Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | |||
| Spherical - Spherical, rounded aggregates. | |||
| 2.5-3 - Finger Nail-Calcite | |||
| None. | |||
| Vitreous - Pearly | |||
| bluish green | |||
Optical Properties of Clinoclase |
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| CI meas= -0.084 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.068 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1919,KPDmeas= 0.1948,KC= 0.1797 |
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| Biaxial (-), a=1.73, b=1.87, g=1.91, bire=0.1800, 2V(Calc)=52, 2V(Meas)=30. Dispersion relatively strong. | |||
Calculated Properties of Clinoclase |
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relectron=4.10 gm/cc |
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| Fermion Index = 0.00014 Boson Index = 0.99986 |
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PEClinoclase = 35.98 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Clinoclase is Not Radioactive |
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Clinoclase Classification |
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| 41.3.1.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | |||
| (41.3)where (A B)3 (XO4) Zq | |||
| (41.3.1)Dana Group | |||
| VII/B.13-20 VII - Phosphates, Arsenates and Vanadates | |||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds | |||
| VII/B.13 - Pseudomalachite group, Cornetite - Clinoclase series | |||
Other Clinoclase Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | |||
| Links to other databases for Clinoclase : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - Franklin Minerals(Dunn) 7 - Google Images 8 - Google Scholar 9 - Handbook of Mineralogy (MinSocAm) 10 - Handbook of Mineralogy (UofA) 11 - MinDAT 12 - MinMax(Deutsch) 13 - MinMax(English) 14 - Mineralienatlas (Deutsch) 15 - QUT Mineral Atlas 16 - Ruff.Info 17 - WWW-MINCRYST 18 - theimage Search for Clinoclase using: Visit our Advertisers for Clinoclase : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals The GeoZone Wrights Rock Shop Translate Clinoclase Mineral Data : Ask about Clinoclase here : Print or Cut-and-Paste your Clinoclase Specimen Label here :
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