Heulandite | |
Chemical Formula |
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O |
Species |
Silicates |
Mohs Scale |
3 |
Specific Gravity |
2.17 |
Color |
White |
Streak |
White |
Luster |
Vitreous, Pearly |
Refractive Index |
n = 1.476 - 1.506 n = 1.479 - 1.510 n = 1.479 - 1.517 |