Rock Identifier
Yellow Quartz (Citrine / Orange Quartz) (Silicon Dioxide (SiO2)) — mineral
mineral

Yellow Quartz (Citrine / Orange Quartz)

Silicon Dioxide (SiO2)

Hardness 7 on Mohs scale, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, yellowish-orange to translucent tan color.

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Physical properties

Hardness 7 on Mohs scale, vitreous to greasy luster, trigonal crystal system, conchoidal fracture, yellowish-orange to translucent tan color.

Formation & geological history

Forms in pegmatites, hydrothermal veins, and igneous rocks through the cooling of silica-rich solutions under high pressure.

Uses & applications

Used widely in ornamental carvings, lapidary projects, crystal healing collections, and jewelry making.

Geological facts

Quartz is one of the most abundant minerals in the Earth's continental crust. Yellow varieties can naturally derive their hue from ferric iron impurities.

Field identification & locations

Can be identified by its inability to be scratched by steel, lack of distinct cleavage, and glassy appearance. Widely found in Brazil, Madagascar, Russia, and the United States.