|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | phlogopite (mica group) | 2.50 | basal | Uneven | Transparent | none | 2.86 | glassy | brown | white | tabular | silicates | Hexagonal plates sometimes aggregretes. |
|