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Tenorite

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Bust of Michele Tenore
Formula:
CuO
Colour:
Grey, black
Lustre:
Metallic
Hardness:
Specific Gravity:
6.45
Crystal System:
Monoclinic
Name:
Named after Michele Tenore (Napoli, 5 May 1780 - Napoli, 19 July 1861), Professor of Botany, University of Naples and G. Tenore, President of the Naples Academy (Italy).
This page provides mineralogical data about Tenorite.


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Classification of TenoriteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.AB.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
B : M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only
Dana 7th ed.:
4.2.3.1
4.2.3.1

4 : SIMPLE OXIDES
2 : AX
7.3.2

7 : Oxides and Hydroxides
3 : Oxides of Cu

Physical Properties of TenoriteHide

Metallic
Transparency:
Opaque
Colour:
Grey, black
Streak:
Black
Hardness:
3½ on Mohs scale
Hardness:
VHN100=190 - 300 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
In zones [011] and [011]
Fracture:
Irregular/Uneven, Conchoidal
Comment:
Flexible and elastic in thin scales.
Density:
6.45 g/cm3 (Measured)    6.515(2) g/cm3 (Calculated)

Optical Data of TenoriteHide

Type:
Anisotropic
Anisotropism:
Strong, blue to grey
Bireflectance:
Strong
Colour in reflected light:
light gray with golden tint
Pleochroism:
Weak
Comments:
Distinct, light to dark brown.

Chemical Properties of TenoriteHide

Formula:
CuO
CAS Registry number:
1317-38-0

CAS Registry numbers are published by the American Chemical Society

Crystallography of TenoriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 4.6837(5) Å, b = 3.4226(5) Å, c = 5.1288(6) Å
β = 99.47°
Ratio:
a:b:c = 1.368 : 1 : 1.499
Unit Cell V:
80.63 ų
Z:
4
Morphology:
Paper-thin twinned aggregates and laths parallel {100} and elongated [011] (Vesuvius); striated [010] on {100}. Curved plates. Thin shining flexible scales. Stellate groups. Earthy, pulverulent.
Twinning:
1. Common on {011}, producing dovetail reentrants and feather-like forms as seen on {100}; also stellate groups and complex dendritic patterns. 2. On {100} ?

Crystallographic forms of TenoriteHide

Crystal Atlas:
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Tenorite no.5 - Goldschmidt (1913-1926)
Tenorite no.7 - Goldschmidt (1913-1926)
3d models and HTML5 code kindly provided by www.smorf.nl.

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Transparency
Opaque | Translucent | Transparent

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Type Occurrence of TenoriteHide

Synonyms of TenoriteHide

Other Language Names for TenoriteHide

Varieties of TenoriteHide

GeltenoriteA gel form of Tenorite.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Chrysocolla95 photos of Tenorite associated with Chrysocolla on mindat.org.
Malachite69 photos of Tenorite associated with Malachite on mindat.org.
Copper36 photos of Tenorite associated with Copper on mindat.org.
Cuprite36 photos of Tenorite associated with Cuprite on mindat.org.
Azurite31 photos of Tenorite associated with Azurite on mindat.org.
Quartz17 photos of Tenorite associated with Quartz on mindat.org.
Dolerophanite13 photos of Tenorite associated with Dolerophanite on mindat.org.
Chalcocyanite11 photos of Tenorite associated with Chalcocyanite on mindat.org.
Calcite8 photos of Tenorite associated with Calcite on mindat.org.
Goethite7 photos of Tenorite associated with Goethite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.AB.Carbon Monoxide IceCO
4.AB.05CredneriteCuMnO2Mon. 2/m : B2/m
4.AB.15DelafossiteCuFeO2Trig. 3m (3 2/m)
4.AB.15McconnelliteCuCrO2Trig.
4.AB.20BromelliteBeOHex. 6mm : P63mc
4.AB.20ZinciteZnOHex. 6mm : P63mc
4.AB.25BunseniteNiOIso. m3m (4/m 3 2/m) : Fm3m
4.AB.25LimeCaOIso. m3m (4/m 3 2/m)
4.AB.25ManganositeMnOIso. m3m (4/m 3 2/m) : Fm3m
4.AB.25MonteponiteCdOIso. m3m (4/m 3 2/m) : Fm3m
4.AB.25PericlaseMgOIso. m3m (4/m 3 2/m) : Fm3m
4.AB.25WüstiteFeOIso. m3m (4/m 3 2/m) : Fm3m
4.AB.30PalladinitePdOTet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.3.1CupriteCu2OIso. m3m (4/m 3 2/m) : Pn3m
7.3.3ParamelaconiteCu1+2Cu2+2O3Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
7.3.4SpertiniiteCu(OH)2Orth.
7.3.5CredneriteCuMnO2Mon. 2/m : B2/m
7.3.6DelafossiteCuFeO2Trig. 3m (3 2/m)
7.3.7CuprospinelCu2+Fe3+2O4Iso.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Tenorite in petrologyHide

Common component of (items highlighted in red)

References for TenoriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Werner (1789) Bergm. Journal (as Kupferschwärze).
Huot (1841) 326 (as Melaconite).
Semmola (1841) Opere Minori, 45, Napoli.
Semmola, M.S. (1842) Du cuivre oxidé natif (ténorite). Bulletin de la Société Géologique de France: 13: 206-211.
Scacchi (1842) Distrib. Sist. Min.: 40, Napoli (as Melacosina).
Dana (1850) System of Mineralogy, 5th ed., p. 518.
Church (1865) Cem. News: 11: 122.
Story-Maskelyne (1865) British Assoc., Rep.: 35: 33.
Story-Maskelyne (1866) Rss. Min. Ges. Vh.: 1: 147.
Scacchi (1875) Acc. Napoli, Att.: 6(9): 12.
Tunell, G., Posnjak, E., Ksanda, C.J. (1935) Geometrical and optical properties, and crystal structure of tenorite. Zeitschrift für Kristallographie: 90: 120-142.
Palache, C., Berman, H., Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 507-510.
Åsbrink, S., Norrby, L.-J. (1970) A refinement of the crystal structure of copper(II) oxide with a discussion of some exceptional E.s.d.'s. Acta Crystallographica: B26: 8-15.
Brese, N.E., O'Keeffe, M., Ramakrishna, B.L., Von Dreele, R.B. (1990) Low-temperature structures of CuO and AgO and their relationships to those of MgO and PdO. Journal of Solid State Chemistry: 89: 184-190.
Åsbrink, S., Waśkowska, A. (1991) CuO: X-ray single-crystal structure determination at 196 K and room temperature. Journal of Physics: Condensed Matter: 3: 8173-8180.
Debbichi, L., Marco de Lucas, M.C., Pierson, J.F., Krüger, P. (2012) Vibrational properties of CuO and Cu4O3 from first-principles calculations, and Raman and infrared spectroscopy. Journal of Physical Chemistry C: 116: 10232-10237.

Internet Links for TenoriteHide

Localities for TenoriteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListShow

Mineral and/or Locality  
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