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

Yellow Quartz

Silicon Dioxide (SiO2)

Hardness of 7 on the Mohs scale, yellowish to golden color due to iron oxide inclusions, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.

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Physical properties

Hardness of 7 on the Mohs scale, yellowish to golden color due to iron oxide inclusions, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, specific gravity of 2.65.

Formation & geological history

Formed in hydrothermal veins, pegmatites, and sedimentary environments through the crystallization of silica-rich solutions under varying temperatures and pressures over millions of years.

Uses & applications

Used in jewelry, decorative carvings, metaphysical practices, and mineral collections.

Geological facts

Quartz is one of the most abundant minerals in the Earth's continental crust. Variations in color are typically caused by trace impurities like iron or natural irradiation.

Field identification & locations

Can be identified by its conchoidal fracture, lack of cleavage, and scratching glass (hardness 7). Found worldwide in various geological settings.