mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous to greasy luster, white to yellowish-brown color due to iron oxide staining, trigonal crystal system, conchoidal fracture with no true cleavage, 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, vitreous to greasy luster, white to yellowish-brown color due to iron oxide staining, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed through crystallization in igneous, metamorphic, and hydrothermal environments, often weathered and water-worn into rounded pebbles in sedimentary river or beach environments over millions of years.
Uses & applications
Used in glassmaking, abrasives, electronics, landscaping, and lapidary arts.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust, highly resistant to both chemical and physical weathering.
Field identification & locations
Easily identifiable in the field by its high hardness (scratches glass), conchoidal fracture, and lack of reaction to acid. Found worldwide in nearly every geological setting.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Septarian Pebble
Septarian nodule / Concretion
sedimentary