molybdenite

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molybdenite (molybdenum sulphide, MoS2) Sulphide mineral, found in pegmatites, igneous and metamorphic rocks. It is a major ore of molybdenum. It has hexagonal system tabular prisms, flakes, and fine granules. It is lead-grey in colour with a metallic lustre. Hardness 1–1.5; r.d. 4.7.

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