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Cupalite Mineral Data
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General Cupalite Information
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 Chemical Formula: |
(Cu,Zn)Al |
| Composition: |
Molecular Weight = 90.71 gm |
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Aluminum 29.74 % Al |
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Zinc 7.21 % Zn |
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Copper 63.05 % Cu |
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______ |
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100.00 % |
| Empirical Formula: |
Cu0.9Zn0.1Al |
| Environment: |
In weathered serpentinite. |
| IMA Status: |
Approved IMA 1985 |
| Locality: |
Listvenitovii River, Koryak Mountains, Kamchatka, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for its composition (Cu, Al). |
| Synonym: |
ICSD 40332 |
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PDF 39-1371 |
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Cupalite Crystallography
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| Axial Ratios: |
a:b:c =1.6706:1:2.4134 |
| Cell Dimensions: |
a = 6.95, b = 4.16, c = 10.04, Z = 10; V = 290.28 Den(Calc)= 5.19 |
| Crystal System: |
Orthorhombic Space Group: Unk |
| X Ray Diffraction: |
By Intensity(I/Io): 5.07(1), 4.12(0.8), 3.59(0.2), |
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Physical Properties of Cupalite
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| Color: |
Steel yellow. |
| Diaphaneity: |
Opaque |
| Habit: |
Inclusions - Generally found as inclusions in other minerals. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
4.5 - Between Fluorite and Apatite |
| Luster: |
Metallic |
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Optical Properties of Cupalite
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| RL Anisotrophism: |
Very weak, from light gray to gray. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Cupalite in Air
| λ |
R |
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∑ R(λ) |
| 440 nm |
66.80 |
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| 460 nm |
66.10 |
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| 480 nm |
65.30 |
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| 500 nm |
64.50 |
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| 520 nm |
63.70 |
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| 540 nm |
62.90 |
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| 560 nm |
62.10 |
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| 580 nm |
61.30 |
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| 600 nm |
60.40 |
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| 620 nm |
59.70 |
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| 640 nm |
58.90 |
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| 660 nm |
58.20 |
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| 680 nm |
57.70 |
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| 700 nm |
57.20 |
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Calculated Relative Intensity Colors of Cupalite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
150% |
| R |
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Calculated Properties of Cupalite
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| Electron Density: |
Bulk Density (Electron Density)=4.82 gm/cc
note: Specific Gravity of Cupalite =5.19 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0029554985
Boson Index = 0.9970445015 |
| Photoelectric: |
PECupalite = 33.00 barns/electron
U=PECupalite x rElectron Density= 158.96 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Cupalite is Not Radioactive |
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Cupalite Classification
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| Dana Class: |
01.01.15.01 (01)Native Elements |
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(01.01)with metallic elements other than the platinum group |
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(01.01.15)Dana Group |
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01.01.15.01 Cupalite (Cu,Zn)Al Unk Ortho |
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01.01.15.02 Khatyrkite (Cu,Zn)Al2 I 4/mcm 4/m 2/m 2/m |
| Strunz Class: |
01.AA.20 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.A - Metals and Intermetallic Alloys |
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01.AA -Copper-cupalite family |
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01.AA.20 Cupalite (Cu,Zn)Al Unk Ortho |
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Other Cupalite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| 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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Print or Cut-and-Paste your Cupalite Specimen Label here :
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Cupalite
(Cu,Zn)Al
Dana No: 01.01.15.01 Strunz No: 01.AA.20
Locality:
Notes:
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