sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, typically translucent to opaque, vitreous to dull luster, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, typically translucent to opaque, vitreous to dull luster, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed through the weathering and erosion of parent rocks containing quartz, followed by transportation by water or wind and deposition in sedimentary environments.
Uses & applications
Used in landscaping, decorative stone, construction aggregate, and lapidary work.
Geological facts
Quartz is one of the most abundant and durable minerals in the Earth's continental crust, making it very resistant to chemical and physical weathering.
Field identification & locations
Commonly found in riverbeds, beaches, and alluvial deposits worldwide. Identified by its high hardness (scratches glass) and lack of cleavage.
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Sandstone or Siltstone
Arenite (if sandstone)
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Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
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Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
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Banded Siltstone / Mudstone Pebble
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