Mineralogy Database

Nevadaite Mineral Data

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General Nevadaite Information

Help on Chemical  Formula: Chemical Formula: (Cu++,[ ],Al,V+++)6[Al8(PO4)8F8] (H2O)23
Help on Composition: Composition: 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
Help on Empirical Formula: Empirical Formula: Cu2Zn0.02V3+0.98Al1.15Al8P7.9O32F8.37(OH)1.63(H2O)21.65
Help on Environment: Environment: Secondary mineral found in the upper supergene zone of the Carlin-trend gold belt. New structure type
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: 5425-5375 (elevation) benches, Gold Quarry open-pit mine near Carlin, Eureka County, Nevada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality
Help on Synonym: Synonym: IMA2002-035

Nevadaite Image

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Comments: Robin's egg blue radiating acicular sprays of nevadaite to about 0.3 mm.
Location: Gold Quarry mine, Eureka Co., Nevada, USA. Scale: Picture size 2 cm.
© Tom Loomis / Dakota Matrix

Nevadaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.638:1:0.2611
Help on Cell Dimensions: Cell Dimensions: a = 12.123, b = 18.999, c = 4.961, Z = 1; V = 1,142.64 Den(Calc)= 2.56
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 21mn
Help on X Ray Diffraction: X Ray Diffraction: 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

Help on Cleavage: Cleavage: None
Help on Color: Color: Pale green, Turquoise.
Help on Density: Density: 2.54
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale powder blue

Optical Properties of Nevadaite

Help on Gladstone-Dale: Gladstone-Dale: 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
Help on Optical Data: Optical Data: Biaxial (-), a=1.54, b=1.548, g=1.553, bire=0.0130

Calculated Properties of Nevadaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.55 gm/cc
note: Specific Gravity of Nevadaite =2.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0003467178
Boson Index = 0.9996532822
Help on Photoelectric: Photoelectric: PENevadaite = 4.78 barns/electron
U=PENevadaite x rElectron Density= 12.16 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nevadaite is Not Radioactive

Nevadaite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.06)where (AB)2 (XO4) Zq � x(H2O)
  (42.06.13)Nevadaite Group Nevadaite! (Cu,[],Al,V)6[Al8(PO4)8F8](H2O)23 P 21mn 2 2 2 Cloncurryite! [Cu0.56(VO)0.44]Al2(PO4)2(F,OH)•2.5H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 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
08.DC.60 Nevadaite! (Cu,[],Al,V)6[Al8(PO4)8F8](H2O)23 P 21mn 2 2 2
08.DC.60 Cloncurryite! [Cu0.56(VO)0.44]Al2(PO4)2(F,OH)•2.5H2O) P 21/c 2/m

Other Nevadaite Information

Help on References: References: NAME( CanMin, v 41 ,p 741) PHYS. PROP.(CanMin, v 41 ,p 741) OPTIC PROP.(CanMin, v 41 ,p 741)
Help on See Also: See Also: 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

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Print or Cut-and-Paste your Nevadaite Specimen Label here :


(Cu++,[ ],Al,V+++)6[Al8(PO4)8F8] (H2O)23
Dana No: Strunz No: 08.DC.60





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