mineral
White quartz pebble
Quartz (silicon dioxide, SiO₂), likely milky quartz or quartz-rich vein material
AI-generated identification · may be incorrectHardness 7 Mohs; white to cream, translucent to opaque, with a vitreous-to-waxy luster and no obvious cleavage. The smooth rounded shape indicates water or abrasion wear; specific gravity is about 2.65.
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Physical properties
Hardness 7 Mohs; white to cream, translucent to opaque, with a vitreous-to-waxy luster and no obvious cleavage. The smooth rounded shape indicates water or abrasion wear; specific gravity is about 2.65.
Formation & geological history
Formed when silica-rich fluids crystallized in veins or igneous rocks, commonly during Precambrian to younger geological events, then weathered and rounded in sediment or beach environments.
Uses & applications
Common quartz is used in glass, ceramics, abrasives, electronics, and engineered stone; this small rounded piece has little jewelry or industrial value.
Geological facts
Milky color results from microscopic fluid inclusions, fractures, or impurities that scatter light. Quartz is one of Earth’s most abundant and durable minerals.
Field identification & locations
Identify by its glassy appearance, lack of cleavage, and inability to be scratched by a steel knife; it should scratch ordinary glass. Common worldwide in riverbeds, beaches, and quartz veins.
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metamorphic
Pegmatite with Tourmaline and Quartz
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Granite
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Septarian Pebble
Septarian nodule / Concretion
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