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