Mineralogy Database

Cupalite Mineral Data

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General Cupalite Information

Help on Chemical  Formula: Chemical Formula: (Cu,Zn)Al
Help on Composition: Composition: Molecular Weight = 90.71 gm
   Aluminum  29.74 %  Al
   Zinc       7.21 %  Zn
   Copper    63.05 %  Cu
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu0.9Zn0.1Al
Help on Environment: Environment: In weathered serpentinite.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Listvenitovii River, Koryak Mountains, Kamchatka, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition (Cu, Al).
Help on Synonym: Synonym: ICSD 40332
  PDF 39-1371

Cupalite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.6706:1:2.4134
Help on Cell Dimensions: Cell Dimensions: a = 6.95, b = 4.16, c = 10.04, Z = 10; V = 290.28 Den(Calc)= 5.19
Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.07(1), 4.12(0.8), 3.59(0.2),

Physical Properties of Cupalite

Help on Color: Color: Steel yellow.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Metallic

Optical Properties of Cupalite

Help on RL Anisotrophism: RL Anisotrophism: Very weak, from light gray to gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Cupalite in Air
λ R  ∑ R(λ) 
 440 nm   66.80   
 460 nm   66.10 
 480 nm   65.30 
 500 nm   64.50 
 520 nm   63.70 
 540 nm   62.90 
 560 nm   62.10 
 580 nm   61.30 
 600 nm   60.40 
 620 nm   59.70 
 640 nm   58.90 
 660 nm   58.20 
 680 nm   57.70 
 700 nm   57.20 
Calculated Relative Intensity Colors of Cupalite in Air
   0%   20%   40%   60%   80% 100% 120% 140% 150%

Calculated Properties of Cupalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.82 gm/cc
note: Specific Gravity of Cupalite =5.19 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0029554985
Boson Index = 0.9970445015
Help on Photoelectric: Photoelectric: PECupalite = 33.00 barns/electron
U=PECupalite x rElectron Density= 158.96 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cupalite is Not Radioactive

Cupalite Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.15)Dana Group Cupalite (Cu,Zn)Al Unk Ortho Khatyrkite (Cu,Zn)Al2 I 4/mcm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 01.AA.20 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.A - Metals and Intermetallic Alloys
  01.AA -Copper-cupalite family
01.AA.20 Cupalite (Cu,Zn)Al Unk Ortho

Other Cupalite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Cupalite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 01.AA.20





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