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, yellow to golden color, vitreous luster, hexagonal crystal system, and conchoidal fracture.

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Physical properties

Hardness of 7 on the Mohs scale, yellow to golden color, vitreous luster, hexagonal crystal system, and conchoidal fracture.

Formation & geological history

Forms in hydrothermal veins and pegmatites through the precipitation of silica-rich solutions under high pressure and temperature.

Uses & applications

Used in jewelry, decorative carvings, and as a collector's mineral specimen.

Geological facts

Yellow coloration is typically caused by natural irradiation or sub-microscopic inclusions of iron hydroxide.

Field identification & locations

Identified by its high hardness, lack of cleavage, and distinct yellow hue; commonly sourced from Brazil, Madagascar, and the USA.