Rock Identifier
Quartz and Mixed Minerals (Silicon Dioxide (SiO2)) — mineral
mineral

Quartz and Mixed Minerals

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, and lack of cleavage with conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, and lack of cleavage with conchoidal fracture.

Formation & geological history

Formed in various geological environments including igneous pegmatites, hydrothermal veins, and sedimentary processes.

Uses & applications

Used extensively in jewelry, electronics, glassware, and as decorative mineral specimens.

Geological facts

Quartz is one of the most abundant and varied minerals in Earth's continental crust, existing in numerous color varieties like citrine, amethyst, and milky quartz.

Field identification & locations

Easily identified in the field by its high hardness (scratches glass) and characteristic conchoidal fracture; found globally worldwide.