Covellite

Info: Covellite is usually found in grain or whole masses. Typical for the mineral is his dark blue to black colour, and with half-metalic shine covellite is loved by collectors, because of this. Covellite is very soft but very heavy mineral. Leaf forms of the mineral can be bend without breaking.

Found: Bigger deposits of covellite were found in Bor (Serbia), Butte (Montana, USA), Kenekott (Aliaska, USA). Beautifull minerals were found in marble from Carrara (Italy). In Czech Republic covellite is found in almost every copper mine.

Used for: Along with other minerals is used for extraction of copper.

Crystal structure
Six-sided
Hardness
1,5 - 2
Colour
Blue black
Shine
Half - metalic