|
Hard- ness |
Cleavage |
Fracture |
Trans- parency |
10% HCl Reaction |
SG |
Luster |
Color |
Streak |
Xtal Form |
Mineral Class |
Comments | laumontite (zeolite group) | 3.50 | parallel | Splintery | Transparent | none | 2.20 | glassy | white | white | acicular | silicates | Vertical striations. White to light yellow or brown. |
|