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Chrysocolla Mineral Data + |
General Chrysocolla Information |
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| (Cu,Al)2H2Si2O5(OH)4·n(H2O) | |||
| Molecular Weight = 328.42 gm | |||
| Aluminum 2.05 % Al 3.88 % Al2O3 | |||
| Copper 33.86 % Cu 42.39 % CuO | |||
| Silicon 17.10 % Si 36.59 % SiO2 | |||
| Hydrogen 1.92 % H 17.14 % H2O | |||
| Oxygen 45.06 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Cu1.75Al0.25H1.75(Si2O5)(OH)4·0.25(H2O) | |||
| Mineral of secondary origin commonly associated with other secondary copper minerals. | |||
| Valid Species (Pre-IMA) 315 BC | |||
| Nizhne-Tagilsk, Ural Mountains, Russia Link to MinDat.org Location Data. | |||
| Named from the Greek chrysos - "gold" and kolla - "glue" in allusion to the name of the material used to solder gold. | |||
| Bisbeeite | |||
Chrysocolla Image | |||
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Chrysocolla Crystallography |
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| a:b:c =0.6404:1:0.7528 | |||
| a = 5.7, b = 8.9, c = 6.7, Z = 1; V = 339.89 Den(Calc)= 1.60 | |||
| OrthorhombicSpace Group: Unk | |||
| By Intensity(I/Io): 1.494(1), 2.92(0.8), 8.3(0.6), | |||
Physical Properties of Chrysocolla |
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| None | |||
| Green, Bluish green, Blue, Blackish blue, Brown. | |||
| 1.9 - 2.4, Average = 2.15 | |||
| Translucent to opaque | |||
| Brittle - Sectile - Brittle fracture with slightly sectile shavings possible. | |||
| Botryoidal - "Grape-like" rounded forms (e.g.. malachite). | |||
| Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). | |||
| Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite). | |||
| 2.5-3.5 - Finger Nail-Copper Penny | |||
| None. | |||
| Vitreous - Dull | |||
| light green | |||
Optical Properties of Chrysocolla |
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| colorless. | |||
| pale blue green. | |||
| CI meas= -0.19 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.599 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.343,KPDmeas= 0.2553,KC= 0.2145 |
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| Uniaxial (+), w=1.46, e=1.57, bire=0.1380-0.1750. | |||
Calculated Properties of Chrysocolla |
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relectron=2.12 gm/cc |
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| Fermion Index = 0.0082 Boson Index = 0.9918 |
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PEChrysocolla = 15.21 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chrysocolla is Not Radioactive |
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Chrysocolla Classification |
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| 74.3.2.1 (74)Phyllosilicate Modulated Layers | |||
| (74.3)with joined strips | |||
| (74.3.2)Dana Group | |||
| VIII/E.21-20 VIII - Silicates | |||
| VIII/E - Cyklosilicates, six rings [Si6O18]12- | |||
| VIII/E.21 - Dioptase - Chrysocolla series | |||
Other Chrysocolla Information |
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| NAME( Ford32) PHYS. PROP.(Ford32) OPTIC PROP.(Ford32) | |||
| Links to other databases for Chrysocolla : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - Franklin Minerals(Dunn) 5 - Glendale Community College 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - MinMax(Deutsch) 12 - MinMax(English) 13 - Mineralienatlas (Deutsch) 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - Scandinavian mineral gallery 17 - Tradeshop.com - The Rainbow of Gems 18 - theimage Search for Chrysocolla using: Visit our Advertisers for Chrysocolla : 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 Chrysocolla Mineral Data : Ask about Chrysocolla here : Print or Cut-and-Paste your Chrysocolla Specimen Label here :
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