Hardness: 1 - 1.5
Density: 4.6 - 5.1
Streak: Blackish lead-gray
Habit: Fine/medium grained aggregate. Can feel greasy.
| ||Crystal System: Hexagonal|
Cleavage: Perfect basal
Reaction with HCl: Unknown
Identification in hand sample:
Colour is best indicator. Greasy feel and luster are good as well, as is its relative softness.
Occurs in hydrothermal deposits. Also found in pegmatites and in skarn deposits.
Industrial / ecomonic uses:
Primary ore of which molybdenum is mined. Usually alloyed with iron.