|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | cryolite | 2.50 | none | Uneven | Transparent | none | 2.95 | glassy | white | white | faceted | halides | Occurs in pegmatites. |
|