Triphylite | |
Chemical Formula |
LiMnPO4 |
Species |
Phosphates |
Crystal System |
Orthorhombic |
Mohs Scale |
4 |
Specific Gravity |
3.445-3.50 |
Color |
Clove-brown, yellowish brown, honey-yellow, salmon-pink, blue-gray, gray |
Streak |
White to grayish white |
Luster |
Sub-Vitreous, Resinous, Greasy |
Refractive Index |
n = 1.689 - 1.705 n = 1.685 - 1.710 n = 1.685 - 1.720 |
Diaphaneity |
Translucent |
Cleavage |
Very GoodOn nearly perfect; on good; on poor. |
Fracture |
Irregular/Uneven |
Crystal Habit:Prismatic – crystals shaped like slender prisms | |
Geological Setting:Complex zoned granitic pegmatites. |