Species: Ferberite (twinned)
Locality: Tazna mine, Cerro Tazna, Nor Chichas Province, Potosí, Bolivia
Dimensions: 6.5 x 5 x 3.5 cm.
Cerro Tazna, one of the highest elevation mining sites in the world (over 16,000 feet!) has produced some of the world’s finest ferberite crystals, and this is a choice “v-twin” crystal from a major find over thirty years ago. The crystal is in fine condition with great symmetry of the twinning, good luster, and complex form. A fine Bolivian mineral classic from the collection of Tungsten specialist John Attard. Mark Cross photo.