Trilithionite | |
Chemical Formula |
KLi2Al(Al,Si)3O10(F,OH)2 |
Species |
Silicates |
Crystal System |
Monoclinic |
Mohs Scale |
2.5-3 |
Specific Gravity |
2.8-2.9 |
Color |
Pink, purple, rose-red, Purple-gray, yellowish, white, colorless |
Streak |
White |
Luster |
Vitreous to pearly |
Refractive Index |
nα=1.525–1.548, nβ=1.551–1.58, nγ=1.554–1.586 |
Diaphaneity |
Transparent to translucent |
Cleavage |
perfect |
Fracture |
Uneven |
Crystal Habit:Tabular to prismatic pseudohexagonal crystals, scaly aggregates and massive |