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Metallic Mineral Found In Pakistan

Rare black minerals vary in color, luster, grain, and hardness.Metallic to dull luster hardness of 2 to 6.This uncommon glittering black mineral, related to the micas, is found primarily in high-pressure metamorphic rocks with high iron content such as blueschist or greenschist.Unlike biotite, its flakes are brittle rather than.

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