|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | argentite | 2.00 | poor | conchoidal | opaque | none | 7.30 | dull | grey | metallic | tabular | sulfides | Fresh surfaces silver white but quickly darkens towards black. Fuses easily giving off sulfur fumes |
|