|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | arfvedsonite | 6.00 | parallel | Uneven | opaque | none | 3.50 | glassy | black | grey | prismatic | silicates | Dark green to black. Streak dark-blue to grey. |
|