General Information:
Chemical Formula:ThO2
Composition:(Molecular Weight = 264.04 gm)Thorium 87.88 %
ThOxygen 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
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