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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on Mohs scale, transparent to translucent, vitreous luster, conchoidal fracture, specific gravity of 2.65.

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Physical properties

Hardness of 7 on Mohs scale, transparent to translucent, vitreous luster, conchoidal fracture, specific gravity of 2.65.

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments through crystallization from silica-rich fluids and melts.

Uses & applications

Used in electronics, glassmaking, abrasives, and gemstone jewelry.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.

Field identification & locations

Identified by its high hardness (scratches glass), lack of cleavage, and conchoidal fracture; found worldwide.