Rock Identifier
Smoky Quartz (Silicon Dioxide (SiO2)) — mineral
mineral

Smoky Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, brown to black color with vitreous luster, hexagonal crystal system, and conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, brown to black color with vitreous luster, hexagonal crystal system, and conchoidal fracture.

Formation & geological history

Forms in igneous and metamorphic rocks through natural irradiation of silicon dioxide by radioactive elements over geological time scales.

Uses & applications

Used extensively in jewelry, ornamental carvings, and metaphysical practices due to its grounding energy.

Geological facts

The dark coloration results from free silicon formed when natural radiation alters the crystal lattice structure.

Field identification & locations

Identified by its characteristic smoky-brown to black translucency and hexagonal prism habit; globally distributed in pegmatites.