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

Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. It typically appears colorless or white, but can occur in various colors.

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Physical properties

Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. It typically appears colorless or white, but can occur in various colors.

Formation & geological history

Forms in a wide range of geological environments, including igneous, metamorphic, and sedimentary rocks, often crystallizing from silica-rich hydrothermal solutions.

Uses & applications

Widely used in electronics, glassmaking, abrasives, and as a popular gemstone in jewelry and ornamentation.

Geological facts

Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties, making it essential for clocks and watches.

Field identification & locations

Identified by its high hardness, lack of cleavage, and characteristic conchoidal fracture. Found globally in almost all rock types.