Bournonite
This specimen comes from Kosovská Mitrovica, from the mines in Třepča. Bournonite consists of steel gray, metallic shiny, grooved, longitudinally elongated crystals reaching a size of up to 7 mm, which grow into quartz crystals together with pyrite and calcite.
| Origin | Europe » Kosovo » Kosovska Mitrovica » Trepca |
| Size category | Miniature (4-7 cm) |
| Size | 6,0 x 4,3 x 4,9 cm |
| Weight | 218 g |
| The biggest crystal | 0,8 x 0,7 x 0,6 cm |