वैदिक नदी अस्किनी की पहचान किस एक नदी के रूप में की जाती हैं
Most of the world's copper comes from the minerals chalcopyrite and chalcocite. Chrysocolla and malachite also are mined for copper. Other copper-bearing minerals include atacamite, azurite, bornite, brochantite, cuprite (copper oxide), dioptase, rosasite and tetrahedrite.
