sedimentary
Quartz pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and typically brown or translucent due to staining.
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, vitreous luster, conchoidal fracture, and typically brown or translucent due to staining.
Formation & geological history
Formed through the weathering and prolonged aqueous transportation of parent quartz rocks in river or marine environments.
Uses & applications
Used in landscaping, aggregate for construction, and educational or beginner rock collecting.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth's surface, highly resistant to chemical weathering.
Field identification & locations
Easily identified by its high hardness, lack of cleavage, and smooth rounded shape found in streambeds and gravel bars.
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