Smoky Quartz

Smoky Quartz
Wikimedia Commons

Smoky Quartz

Quartz

Hardness: 7

Streak: White

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AmethystAventurineChertMilky QuartzQuartz VarietiesRose Quartz

Smoky quartz is brown to black quartz coloured by radiation‑induced colour centres; clarity ranges from translucent to nearly opaque.

Parent: Quartz Varieties

Related: Amethyst, Aventurine, Chert, Milky Quartz

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