mineral
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness 7. Milky white to translucent. Vitreous to greasy luster. Conchoidal fracture.
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Physical properties
Hardness 7. Milky white to translucent. Vitreous to greasy luster. Conchoidal fracture.
Formation & geological history
Formed in igneous, metamorphic, or sedimentary environments; weathered and rounded by water transport.
Uses & applications
Commonly collected; industrial uses include glassmaking and abrasives.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust.
Field identification & locations
Identified by its hardness (scratches glass) and lack of cleavage. Very common globally in riverbeds and beaches.
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