MolybdeniteMoS2
Class: Sulfide Hardness: 1 - 1.5 Density: 4.6 - 5.1 Streak: Blackish lead-gray Lustre: Metallic Habit: Fine/medium grained aggregate. Can feel greasy. Colours: Silver-bluish | | Crystal System: Hexagonal Cleavage: Perfect basal Fracture: Uneven Magnetism: None 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. Associations: 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. |