mineral

Yellow Quartz

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, pale yellow to golden color, vitreous luster, hexagonal crystal system (though tumbled here), conchoidal fracture, specific gravity of 2.65.

Identified August 7, 2026More mineral →

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Physical properties

Hardness of 7 on the Mohs scale, pale yellow to golden color, vitreous luster, hexagonal crystal system (though tumbled here), conchoidal fracture, specific gravity of 2.65.

Formation & geological history

Formed in various geological environments, predominantly in igneous pegmatites, hydrothermal veins, and sedimentary environments as secondary deposits from silica-rich solutions.

Uses & applications

Used in jewelry, decorative items, lapidary arts, and as a collector's specimen.

Geological facts

Yellow quartz is often naturally colored by iron impurities within the crystal lattice. When intensely colored and transparent, it is classified as citrine.

Field identification & locations

Easily identified by its high hardness (scratches glass), conchoidal fracture, and lack of cleavage. Commonly found in river gravels and beaches worldwide after being weathered from parent rock.