mineral
Tumbled Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system when unpolished.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system when unpolished.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and igneous or metamorphic rocks over millions of years.
Uses & applications
Widely used in jewelry, lapidary arts, electronics, and crystal collections.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Identified by its high hardness, lack of cleavage, and ability to scratch glass; found globally in stream beds and pegmatites.
