General Information:
Chemical Formula:
ThO2
Composition:
(Molecular Weight = 264.04 gm)
Thorium 87.88 % Th
Oxygen 12.12 % O
Empirical Formula:
ThO2
Environment:
Pegmatites and alluvial deposits.
Locality:
Sri Lanka.
Name Origin:
Named for its chemical composition containing thorium.
Physical Properties:
Cleavage:
[100] Imperfect, [010] Imperfect, [001] Imperfect
Color:
brownish black, green, green black, gray green, or yellow.
Density:
10
Diaphaniety:
Opaque
Habits:
Pseudo Hexagonal - Crystals show a hexagonal outline., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,
Hardness:
6 - Orthoclase
Luminescence:
Radioactive.
Luster:
Metallic
Streak:
black
More details...