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Calcioandyrobertsite-1M Mineral Data |
General Calcioandyrobertsite-1M Information |
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KCaCu5(AsO4)4[As(OH)2O2]•2(H2O) | ||
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Molecular Weight = 1,129.55 gm | ||
Potassium 3.46 % K 4.17 % K2O | |||
Calcium 3.55 % Ca 4.96 % CaO | |||
Copper 28.13 % Cu 35.21 % CuO | |||
Arsenic 33.16 % As 50.87 % As2O5 | |||
Hydrogen 0.54 % H 4.78 % H2O | |||
Oxygen 31.16 % O | |||
______ ______ | |||
100.00 % 100.00 % = TOTAL OXIDE | |||
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KCaCu5(AsO4)4(As(OH)2O2)•2(H2O) | ||
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Single specimen found at the mine. Forms a series with andyrobertsite. | ||
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Approved IMA 1999 (Dana # Added) | ||
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Tsumeb Mine, Tsumeb, Namibia. Link to MinDat.org Location Data. | ||
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Named after Andrew C. Roberts (1950-), mineralogist with the Geological Survey of Canada. | ||
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Calcioandyrobertsite-1M + Pronunciation ![]() | ||
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Calcio-andyrobertsite-1M - Renamed Calcioandyrobertsite-1M by Mineralogical Record, v39 (2008), p131 | ||
IMA1997-022 | |||
Calcioandyrobertsite-1M Image | |||
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Calcioandyrobertsite-1M Crystallography |
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a:b:c =0.9776:1:0.9941 | ||
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a = 9.81, b = 10.034, c = 9.975, Z = 2; beta = 101.84° V = 960.98 Den(Calc)= 3.90 | ||
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Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m | ||
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By Intensity(I/Io): 9.64(1), 3.145(0.5), 4.46(0.4), | ||
Physical Properties of Calcioandyrobertsite-1M |
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{100} Good | ||
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Electric blue. | ||
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4.011 | ||
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Transparent | ||
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Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
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Platy - Sheet forms (e.g. micas). | ||
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3 - Calcite | ||
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Vitreous (Glassy) | ||
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pale blue | ||
Optical Properties of Calcioandyrobertsite-1M |
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CI meas= -0.035 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.064 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1885,KPDmeas= 0.1832,KC= 0.1771 Ncalc = 1.69 - 1.71 |
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Biaxial (-), a=1.713, b=1.743, g=1.749, bire=0.0360 | ||
Calculated Properties of Calcioandyrobertsite-1M |
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Bulk Density (Electron Density)=3.77 gm/cc note: Specific Gravity of Calcioandyrobertsite-1M =4.01 gm/cc. |
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Fermion Index = 0.000202433 Boson Index = 0.999797567 |
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PECalcioandyrobertsite-1M = 36.27 barns/electron U=PECalcioandyrobertsite-1M x relectron= 136.77 barns/cc. |
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GRapi = 46.97 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Calcioandyrobertsite-1M |
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Calcioandyrobertsite-1M Classification |
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42.09.02.04 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen | ||
(42.09)where (A)3 (XO4)2 Zq � x(H2O) | |||
(42.09.02)Souzalite Group | |||
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08.DH.50 08 - PHOSPHATES, ARSENATES, VANADATES | ||
08.D - Phosphates, etc | |||
08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1 | |||
Other Calcioandyrobertsite-1M Information |
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NAME( AmMin, Vol 84) PHYS. PROP.(AmMin) OPTIC PROP.(AmMin) | ||
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Links to other databases for Calcioandyrobertsite-1M : 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 Calcioandyrobertsite-1M using: Visit our Advertisers for Calcioandyrobertsite-1M : Ask about Calcioandyrobertsite-1M here : Print or Cut-and-Paste your Calcioandyrobertsite-1M Specimen Label here :
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