Covelline
Covelline (k?-v?l"l?n) , noun
[After Covelli, the discoverer.]
(Mineralogy) A native sulphide of copper, occurring in masses of a dark blue color; -- hence called indigo copper.
Also: Covellite
Covelline (k?-v?l"l?n) , noun
[After Covelli, the discoverer.]
Also: Covellite