covelline, covellite Min.
(kəʊˈvɛlaɪn, -aɪt)
[Named after Covelli, an Italian mineralogist who found the mineral in the lava of Vesuvius: see -ine, -ite.]
A native indigo-blue sulphide of copper; often called blue or indigo copper.
| 1850 Dana Min. 510 Covelline. 1868 Ibid. 84 Covellite is the result of the decomposition of other ores of copper. 1863–72 Watt Dict. Chem. II. 74 Protosulphide of Copper or Cupric Sulphide, CuS. This compound is found native, as Covellin, Indigo copper, etc. |
So coˈvellinite = prec.
| 1861 Bristow Gloss. 98 Covellinite. 1869 Phillips Vesuv. x. 278 Covellinite—a sulphide of copper—is noticed as a Vesuvian product by Beudant. |