sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to greyish color with a vitreous to greasy luster, trigonal crystal system, conchoidal fracture, and a specific gravity of around 2.65.
Identified More sedimentary →
Explore Quartz Pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, white to greyish color with a vitreous to greasy luster, trigonal crystal system, conchoidal fracture, and a specific gravity of around 2.65.
Formation & geological history
Formed through the accumulation and weathering of durable quartz grains over millions of years, often rounded by water transport in rivers or beaches.
Uses & applications
Used in landscaping, decorative stone, manufacturing of glass, and abrasive materials.
Geological facts
Quartz is one of the most abundant and durable minerals in the Earth's continental crust, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Easily identified by its high hardness (scratches glass) and conchoidal fracture. Commonly found in riverbeds, beaches, and conglomerate rocks worldwide.
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary