
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness 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.