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Tenorite Mineral Data
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General Tenorite Information
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 Chemical Formula: |
CuO |
| Composition: |
Molecular Weight = 79.55 gm |
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Copper 79.89 % Cu 100.00 % CuO |
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Oxygen 20.11 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
CuO |
| Environment: |
Secondary copper mineral. |
| IMA Status: |
Valid Species (Pre-IMA) 1841 |
| Locality: |
Vesuvio (Vesuvius), Napoli, Campania, Italy Link to MinDat.org Location Data. |
| Name Origin: |
Named after the Italian botanist, M. Tenor (1781-1861). |
| Name Pronunciation: |
Tenorite  |
| Synonym: |
Black Copper Oxide |
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ICSD 67850 |
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Melaconite |
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Melanochalcite |
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PDF 45-937 |
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Tenorite Image |
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Images:
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Tenorite Chrysocolla
Comments: Lustrous black botryoidal Tenorite mostly covering a sky-blue massive chrysocolla matrix.
Location: 79 mine, Banner district, Pinal Co., Arizona.
Scale: 5.5 x 3 cm.
© Dan Weinrich |
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Tenorite Crystallography
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| Axial Ratios: |
a:b:c =1.3585:1:1.4975 |
| Cell Dimensions: |
a = 4.653, b = 3.425, c = 5.129, Z = 4; beta = 99.467° V = 80.63 Den(Calc)= 6.55 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.52(1), 2.32(0.96), 2.53(0.49), |
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Physical Properties of Tenorite
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| Cleavage: |
None |
| Color: |
Black, Steel gray. |
| Density: |
6.5 |
| Diaphaneity: |
Opaque |
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
| Habit: |
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Habit: |
Scaly - Morphology like fish scales. |
| Hardness: |
3.5-4 - Copper Penny-Fluorite |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Earthy (Dull) |
| Magnetism: |
Nonmagnetic |
| Streak: |
black |
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Optical Properties of Tenorite
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| Optical Data: |
Biaxial (?) |
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NCalc= 2.11 - from Gladstone-Dale relationship (KC = 0.17) where Ncalc=Dcalc*KC+1
NCalc= 2.11 - from Gladstone-Dale relationship (KC = 0.17) where Ncalc=Dmeas*KC+1 |
| Pleochroism (x): |
light brown. |
| Pleochroism (z): |
dark brown. |
| RL Anisotrophism: |
Strong, blue to gray. |
| RL Bireflectance: |
Strong. |
| RL Color: |
Light gray with a golden tint. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tenorite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
22.80 |
29.60 |
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| 420 nm |
21.90 |
30.00 |
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| 440 nm |
21.00 |
30.40 |
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| 460 nm |
20.40 |
30.60 |
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| 480 nm |
20.10 |
30.80 |
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| 500 nm |
19.80 |
30.70 |
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| 520 nm |
19.70 |
30.40 |
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| 540 nm |
19.60 |
30.20 |
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| 560 nm |
19.50 |
29.80 |
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| 580 nm |
19.50 |
29.60 |
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| 600 nm |
19.40 |
29.40 |
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| 620 nm |
19.40 |
29.20 |
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| 640 nm |
19.40 |
29.10 |
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| 660 nm |
19.40 |
28.80 |
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| 680 nm |
19.30 |
28.60 |
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| 700 nm |
19.30 |
28.20 |
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Calculated Relative Intensity Colors of Tenorite in Air
Relative
Intensity |
0% |
50% |
100% |
150% |
200% |
250% |
300% |
350% |
400% |
450% |
| R1 |
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| R2 |
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Calculated Properties of Tenorite
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| Electron Density: |
Bulk Density (Electron Density)=6.09 gm/cc
note: Specific Gravity of Tenorite =6.55 gm/cc.
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| Fermion Index: |
Fermion Index = 0.000096545
Boson Index = 0.999903455 |
| Photoelectric: |
PETenorite = 36.14 barns/electron
U=PETenorite x rElectron Density= 220.18 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tenorite is Not Radioactive |
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Tenorite Classification
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| Dana Class: |
04.02.03.01 (04)Simple Oxides |
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(04.02)with a cation charge of 2+ (A++ O) |
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(04.02.03)Dana Group |
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04.02.03.01 Tenorite CuO C 2/c 2/m |
| Strunz Class: |
04.AB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.A - Metal:Oxygen = 2.1 and 1:1 |
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04.AB -M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only |
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04.AB.10 Tenorite CuO C 2/c 2/m |
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Other Tenorite Information
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| References: |
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) |
| See Also: |
Links to other databases for Tenorite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Scandinavian mineral gallery
16 - WWW-MINCRYST
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Tenorite
CuO
Dana No: 04.02.03.01 Strunz No: 04.AB.10
Locality:
Notes:
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