Tetrahedrite with Chalcopyrite
Tetrahedrite-(Fe)
– Cu6(Cu4Fe2)Sb4S13
Fluorite
Talc (1)Diamond (10)
Softer than glass. A steel knife scratches it.
Chalcopyrite
– CuFeS2
Fluorite
Talc (1)Diamond (10)
Softer than glass. A steel knife scratches it.
