|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | astrophyllite | 3.50 | basal | Uneven | Transparent | none | 3.30 | glassy | yellow | yellow | tabular | silicates | Often starlike aggregates. |
|