mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, translucent to transparent, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, translucent to transparent, vitreous luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Formed through crystallization in igneous and metamorphic environments, followed by physical weathering and aqueous transport that rounds the edges.
Uses & applications
Used in aggregate, glassmaking, electronics, and as a polished lapidary stone for jewelry.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's continental crust, surviving weathering cycles that destroy other minerals.
Field identification & locations
Identified by its high hardness that scratches glass and lack of reaction to acid; commonly found in riverbeds, beaches, and sedimentary conglomerates worldwide.
