sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or light tan in color, vitreous luster, and conchoidal fracture.
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, typically white or light tan in color, vitreous luster, and conchoidal fracture.
Formation & geological history
Formed through the weathering and prolonged water-transport of quartz-bearing rocks in river or marine environments.
Uses & applications
Used in landscaping, decorative gravel, tumbling, and occasionally in glassmaking or construction aggregates.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's surface, resisting chemical weathering over immense timescales.
Field identification & locations
Easily identified by its high hardness (scratches glass) and smooth, rounded shape found in stream beds and beaches.
More like this
Other sedimentary specimens
Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion
Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image
fossil
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary