Tremolite | |
Chemical Formula |
Ca2Mg5Si8O22(OH)2 |
Species |
Silicates |
Crystal System |
Monoclinic |
Mohs Scale |
5-6 |
Specific Gravity |
2.99-3.03 |
Color |
White, gray, lavender to pink, light green, light yellow |
Streak |
White |
Luster |
Vitreous, Silky |
Refractive Index |
n = 1.599 - 1.612 n = 1.613 - 1.626 n = 1.625 - 1.637 |
Diaphaneity |
Transparent, Translucent |
Cleavage |
Perfecton |
Crystal Habit:Elongated prismatic, or flattened crystals; also as fibrous, granular or columnar aggregates | |
Geological Setting:Contact metamorphism of Ca-Mg siliceous sediments, regional greenschist metamorphism of ultramafic rocks or magnesium carbonate rocks. |