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

Yellow Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, yellowish color due to iron inclusions, vitreous luster, hexagonal crystal system, and no true cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, yellowish color due to iron inclusions, vitreous luster, hexagonal crystal system, and no true cleavage.

Formation & geological history

Forms primarily in hydrothermal veins and pegmatites through the crystallization of silica-rich solutions over geological timescales.

Uses & applications

Used in gemstone jewelry, decorative carvings, and mineral collections.

Geological facts

Yellow quartz containing trace amounts of iron or undergoing natural irradiation can resemble citrine.

Field identification & locations

Identified by its conchoidal fracture and inability to be scratched by steel; found globally in pegmatites and metamorphic rocks.