mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, typically white, yellow, or translucent in color, vitreous to greasy luster, trigonal crystal system, no cleavage with conchoidal fracture, and specific gravity of 2.65.
Identified More mineral →
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, yellow, or translucent in color, vitreous to greasy luster, trigonal crystal system, no cleavage with conchoidal fracture, and specific gravity of 2.65.
Formation & geological history
Formed through the accumulation and weathering of silicate-rich rocks over millions of years, often smoothed by water action in rivers, beaches, or glacial environments.
Uses & applications
Used in landscaping, decorative gravel, polished display stones, and historically for stone tools.
Geological facts
Quartz is one of the most abundant minerals on Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Easily identified by its high hardness (scratches glass) and conchoidal fracture. Common globally in riverbeds and beaches.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
sedimentary
Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)
mineral
Septarian Pebble
Septarian nodule / Concretion
sedimentary
Schist
Schist
Metamorphic
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral