tennantite


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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.
References in periodicals archive ?
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.
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).
Any of the rarer species from Silvermines such as jordanite, proustite, tennantite etc.
There, it is associated with cinnabar, native mercury, sphalerite, tennantite, chalcopyrite, polydymite and pyrite.
Tennantite occurred with tetrahedrite in vein deposits of the EI Paso mine (Lane, 1976).
Occurrence: In the oxidized zone in a "nest" consisting of galena, tetrahedrite and tennantite in a quartz vein.
The Smithsonian filled a case with fine Tsumeb minerals including leadhillite, anglesite, tennantite, azurite, smithsonite and other collector species.
We have only observed the primary species chalcopyrite and tennantite ([[Cu.
Large tennantite (X-ray verified) crystals to 5 cm were found in 2002, some of them partially covered by green scorodite.