mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Hardness 7 on Mohs scale, vitreous to waxy luster, off-white to yellowish color, trigonal crystal system, no cleavage, specific gravity around 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 7 on Mohs scale, vitreous to waxy luster, off-white to yellowish color, trigonal crystal system, no cleavage, specific gravity around 2.65.
Formation & geological history
Formed through weather-driven erosion and river or beach transport of quartz-bearing igneous, metamorphic, or sedimentary host rocks.
Uses & applications
Commonly used as decorative gravel, in landscaping, stream beds, or gathered as simple pebble collections.
Geological facts
Quartz is one of the most abundant minerals on Earth's continental crust and is extremely resistant to both chemical and mechanical weathering.
Field identification & locations
Found widely in riverbeds, lakeshores, and beaches worldwide. Identified by its ability to scratch glass and steel, non-cleavage fracture, and smooth rounded pebble morphology.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Septarian Pebble
Septarian nodule / Concretion
sedimentary
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral