mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Hardness of 7 on the Mohs scale, yellow or golden-yellow color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.

Identified July 29, 2026More mineral →

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Physical properties

Hardness of 7 on the Mohs scale, yellow or golden-yellow color, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.

Formation & geological history

Forms in hydrothermal veins and pegmatites, as well as secondary deposits where silicon-rich solutions precipitate quartz, often colored by iron oxide inclusions.

Uses & applications

Used in ornamental items, jewelry, gemstone collections, and lapidary art.

Geological facts

Quartz is one of the most abundant minerals in the Earth's continental crust. The yellow variety is often sold commercially under trade names like golden quartz or lemon quartz.