sedimentary
Quartz Pebble
Silicon dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and white to translucent color.
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 white to translucent color.
Formation & geological history
Formed through the mechanical weathering and water-transport rounding of larger quartz-bearing rocks in rivers or coastal environments.
Uses & applications
Used in landscaping, decorative gravel, and occasionally lapidary arts.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, surviving erosion cycles that destroy other minerals.
Field identification & locations
Identified by its high hardness, lack of cleavage, and smooth water-worn shape found abundantly in riverbeds and beaches worldwide.
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