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Nevadaite Mineral Data |
General Nevadaite Information |
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(Cu++,[ ],Al,V+++)6[Al8(PO4)8F8] (H2O)23 | ||
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Molecular Weight = 1,758.65 gm | ||
Aluminum 14.04 % Al 26.52 % Al2O3 | |||
Vanadium 2.84 % V 4.18 % V2O3 | |||
Zinc 0.07 % Zn 0.09 % ZnO | |||
Copper 7.23 % Cu 9.05 % CuO | |||
Phosphorus 13.91 % P 31.88 % P2O5 | |||
Hydrogen 2.58 % H 23.01 % H2O | |||
Oxygen 50.29 % O | |||
Fluorine 9.04 % F 9.04 % F | |||
- % F -3.81 % -O=F2 | |||
______ ______ | |||
100.00 % 99.97 % = TOTAL OXIDE | |||
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Cu2Zn0.02V3+0.98Al1.15Al8P7.9O32F8.37(OH)1.63(H2O)21.65 | ||
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Secondary mineral found in the upper supergene zone of the Carlin-trend gold belt. New structure type | ||
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Approved IMA 2004 (Dana # Added) | ||
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5425-5375 (elevation) benches, Gold Quarry open-pit mine near Carlin, Eureka County, Nevada. Link to MinDat.org Location Data. | ||
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Named for the locality | ||
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IMA2002-035 | ||
Nevadaite Image | |||
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Nevadaite Crystallography |
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a:b:c =0.638:1:0.2611 | ||
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a = 12.123, b = 18.999, c = 4.961, Z = 1; V = 1,142.64 Den(Calc)= 2.56 | ||
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Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 21mn | ||
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By Intensity(I/Io): 6.077(1)(200), 5.618(0.9)(130), 9.535(0.8)(020),2.983(0.6)(241), 2.661(0.4)(061), 3.43(0.4)(041), 1.844(0.4)(352), | ||
Physical Properties of Nevadaite |
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None | ||
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Pale green, Turquoise. | ||
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2.54 | ||
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Translucent | ||
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Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
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Acicular - Occurs as needle-like crystals. | ||
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Crystalline - Fine - Occurs as well-formed fine sized crystals. | ||
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Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) | ||
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3 - Calcite | ||
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Vitreous (Glassy) | ||
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pale powder blue | ||
Optical Properties of Nevadaite |
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CI meas= 0.034 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.041 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2137,KPDmeas= 0.2154,KC= 0.2229 Ncalc = 1.57 |
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Biaxial (-), a=1.54, b=1.548, g=1.553, bire=0.0130 | ||
Calculated Properties of Nevadaite |
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Bulk Density (Electron Density)=2.55 gm/cc note: Specific Gravity of Nevadaite =2.54 gm/cc. |
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Fermion Index = 0.0003467178 Boson Index = 0.9996532822 |
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PENevadaite = 4.78 barns/electron U=PENevadaite x rElectron Density= 12.16 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Nevadaite is Not Radioactive |
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Nevadaite Classification |
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42.06.13.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen | ||
(42.06)where (AB)2 (XO4) Zq � x(H2O) | |||
(42.06.13)Nevadaite Group | |||
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08.DC.60 08 - PHOSPHATES, ARSENATES, VANADATES | ||
08.D - Phosphates, etc | |||
08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1 | |||
Other Nevadaite Information |
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NAME( CanMin, v 41 ,p 741) PHYS. PROP.(CanMin, v 41 ,p 741) OPTIC PROP.(CanMin, v 41 ,p 741) | ||
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Links to other databases for Nevadaite : 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 Nevadaite using: Visit our Advertisers for Nevadaite : Ask about Nevadaite here : Print or Cut-and-Paste your Nevadaite Specimen Label here :
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