|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | riebeckite | 4.00 | parallel | Splintery | Translucent | none | 3.02 | glassy | blue | grey | acicular | silicates | Fibrous crystals like asbestos. Chatoyant. |
|