|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | sylvanite | 1.50 | perfect | conchoidal | opaque | none | 8.00 | metallic | silver | metallic | prismatic | sulfides | Bright silver with yellow tinge if it contains gold |
|