sedimentary
Quartz Pebble
Silicon dioxide (SiO2)
Hardness of 7 on the Mohs scale, typically gray or whitish in color, waxy to vitreous luster, conchoidal fracture, specific gravity of 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, typically gray or whitish in color, waxy to vitreous luster, conchoidal fracture, specific gravity of 2.65
Formation & geological history
Formed through the mechanical weathering and water-transport erosion of larger quartz-bearing rocks, smoothed over long periods in riverbeds or marine environments
Uses & applications
Used in landscaping, decorative stone, and as a raw material in various industrial applications
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and is exceptionally resistant to weathering
Field identification & locations
Found worldwide in stream beds, beaches, and alluvial deposits; easily identified by its high hardness and lack of cleavage
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
sedimentary