
mineral
Smoky Quartz Carving
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, brown to black color, vitreous luster, and hexagonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, brown to black color, vitreous luster, and hexagonal crystal system.
Formation & geological history
Formed through the irradiation of natural silicon dioxide crystals by surrounding radioactive elements in the Earth's crust over millions of years.
Uses & applications
Used as a decorative ornamental carving, gemstone, and in metaphysical practices.
Geological facts
Smoky quartz is the national gemstone of Scotland and was historically used for Scottish mourning jewelry.
Field identification & locations
Identified by its characteristic brown transparency and conchoidal fracture; commonly sourced from Brazil, Madagascar, and the US.