mineral
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale. Typically milky white to translucent with a vitreous luster. Hexagonal crystal system, though often found as massive or tumbled pieces without clear crystal faces.
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Physical properties
Hardness of 7 on Mohs scale. Typically milky white to translucent with a vitreous luster. Hexagonal crystal system, though often found as massive or tumbled pieces without clear crystal faces.
Formation & geological history
Forms from cooling magma or hydrothermal veins. Found globally in igneous, metamorphic, and sedimentary rocks. This specimen is likely weathered and water-worn.
Uses & applications
Used in glassmaking, electronics, optics, abrasives, and as a semi-precious stone in jewelry and lapidary.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. It exhibits piezoelectricity, generating an electric charge under mechanical stress.
Field identification & locations
Identify by its hardness (scratches glass) and conchoidal fracture. Common in riverbeds, beaches, and soil worldwide.
