|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | polybasite | 2.00 | poor | Uneven | opaque | none | 6.00 | metallic | silver | black | tabular | sulfides | resembles hematite but much softer and no right angle cleavage. |
|