sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, colors vary from white to yellowish-brown due to iron staining, vitreous to dull luster, conchoidal fracture, specific gravity 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, colors vary from white to yellowish-brown due to iron staining, vitreous to dull luster, conchoidal fracture, specific gravity around 2.65.
Formation & geological history
Formed through the mechanical weathering and prolonged aqueous transport of larger quartz-bearing rocks, smoothing jagged edges over vast geological time scales in riverbeds or marine environments.
Uses & applications
Used in landscaping, decorative stone, construction aggregate, and occasionally tumbled for lapidary crafts.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Commonly found in stream beds, gravel bars, and sedimentary conglomerate deposits worldwide. Identified by its high hardness (scratches glass) and smooth, rounded pebble shape.
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