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

Blue Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity around 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity around 2.65.

Formation & geological history

Forms in hydrothermal veins and pegmatites, often colored blue by microscopic inclusions of dumortierite or riebeckite.

Uses & applications

Used in metaphysical collections, tumbled stones, jewelry, and decorative carvings.

Geological facts

Blue quartz is sometimes called 'dumortierite quartz' when inclusions of that mineral cause the blue coloration.

Field identification & locations

Identified by its hard, scratch-resistant surface and vibrant blue hue, commonly sourced from Brazil, India, and the USA.