- Cornetite, Chrysocolla
- Cabinet, 9.5 x 7.2 x 4.8 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 very richly lined with 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 extra fine piece, from a new find is from the Type Locality - the Star of the Congo Mine.