Definify.com

Webster 1913 Edition

{

(k?-v?l′l?n)

}

(-l?t)

Noun.

[After

Covelli

, the discoverer.]

(Min.)

A native sulphide of copper, occuring in masses of a dark blue color; – hence called

indigo copper

Covellite

covellite ‎(countable and uncountable, plural covellites)

(mineralogy) A shiny indigo-blue sulfide mineral, Cu S, that is an ore of copper.