tennantite

[′ten·ən‚tīt]

(mineralogy)

(Cu,Fe)₁₂ As₄S₁₃ A lead-gray mineral crystallizing in the isometric system; it is isomorphous with tetrahedrite; an important ore of copper.

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References in periodicals archive ?

The new mineral occurs within a cavity in a massive tennantite sample (4 X 5 X 7 cm) from the Tsumeb mine at Tsumeb, Namibia.

Stibioclaudetite ASSB[O.sub.3] a new mineral from Tsumeb, Namibia: Stibioclaudetite has been found at the Tsumeb mine, Namibia, in bladed crystals to 6 mm association with leiteite, ludlockite, smithsonite and quartz. Previously identified specimens of claudetite from Tsumeb may well be stibioclaudetite instead

The original deposit possessed a leached capping of oxide ore averaging some 27 m in thickness, the principal minerals being malachite, azurite, cuprite, tennantite, brochantite, antlerite and chrysocolla.

Sar Cheshmeh

The pseudomorphs are intergrown with quartz prisms, tennantite crystals to 1 cm, and black sphalerite crystals to 3 cm covered by tiny tennantite tetrahedrons.

Pseudomorphs from Peru: pseudomorphs, crystals that have been replaced by another species while retaining their original shape, have been found in remarkable variety in the mines and mineral deposits of Peru. They provide evidence of changing chemical and physical conditions within ore deposits, and also make fascinating specimens

Beautiful crystals of chalcopyrite are rather rare in the deposit, despite the production of 2,000 tonnes/year of copper concentrates at Trepca (copper in the ore is contained in chalcopyrite, pyrrhotite, tetrahedrite, tennantite, bournonite, bornite and enargite).

Famous Mineral Localities: the Trepca mine, Stari Trg, Kosovo

Any of the rarer species from Silvermines such as jordanite, proustite, tennantite etc.

Silvermines sulfosalts

There, it is associated with cinnabar, native mercury, sphalerite, tennantite, chalcopyrite, polydymite and pyrite.

The Clear Creek mine, San Benito County, California: a unique mercury locality

Tennantite occurred with tetrahedrite in vein deposits of the EI Paso mine (Lane, 1976).

Famous mineral localities: the Cripple Creek mining district Colorado

Occurrence: In the oxidized zone in a "nest" consisting of galena, tetrahedrite and tennantite in a quartz vein.

Abstracts of new mineral descriptions

The Smithsonian filled a case with fine Tsumeb minerals including leadhillite, anglesite, tennantite, azurite, smithsonite and other collector species.

1986

We have only observed the primary species chalcopyrite and tennantite ([[Cu.

Secondary minerals of the Mazarron-Aguilas mining district, Murcia Province, Spain

Large tennantite (X-ray verified) crystals to 5 cm were found in 2002, some of them partially covered by green scorodite.