|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | stephanite | 2.00 | poor | conchoidal | opaque | none | 6.30 | metallic | silver | black | prismatic | sulfides | Individual xtals uncommon. usually massive. |
|