- Cornetite, Chrysocolla
- Cabinet, 9.7 x 6.4 x 6.0 cm
- L'Etoile du Congo Mine (Star of the Congo Mine; Kalukuluku Mine), Lubumbashi (Elizabethville), Southern area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo
Cornetite is a rare, hydrated copper phosphate. This very fine, vuggy specimen in chrysocolla matrix is filled on five sides with very blocky and botryoidal scintillating, vivid teal-blue cornetite microcrystals. A striking and beautiful combination specimen, as the variable colors of chrysocolla are a fine compliment to the teal-blue cornetite. This fine piece, from a new find is from the type locality - the famous Star of the Congo Mine.