Euxenite | |
Chemical Formula |
(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
Species |
Oxides & Hydroxides |
Crystal System |
Orthorhombic |
Mohs Scale |
5.5-6.5 |
Specific Gravity |
4.7-5 |
Color |
Black, brownish black,greenish black |
Streak |
Yellowish, grayish, or reddish brown |
Luster |
Brilliant submetallic, waxy to resinous on fractures |
Refractive Index |
n = 2.06 - 2.24 |
Diaphaneity |
Opaque, translucent on thin edges |
Cleavage |
None |
Fracture |
Conchoidal to subconchoidal |
Crystal Habit:Massive, anhedral crystals in matrix |