mineral
Small rounded quartz pebble
Quartz (SiO₂), possibly milky quartz
AI-generated identification · may be incorrectCreamy white to pale yellow, opaque to slightly translucent, with a dull-to-vitreous luster and irregular surface. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; the image does not show diagnostic crystal faces.
Identified More mineral →
Explore Small rounded quartz pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Creamy white to pale yellow, opaque to slightly translucent, with a dull-to-vitreous luster and irregular surface. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; the image does not show diagnostic crystal faces.
Formation & geological history
Likely a quartz fragment rounded by weathering and transport in sediment; its age and original host rock cannot be determined from the photo.
Uses & applications
Quartz is widely used in glassmaking, electronics, abrasives, and decorative objects; this small pebble has little commercial value.
Geological facts
Quartz is one of Earth’s most abundant minerals and resists chemical weathering, so it commonly persists as rounded pebbles in soil and stream deposits.
Field identification & locations
Its pale color and rounded shape are consistent with quartz, but visual identification is not certain; a glass-scratch test can help distinguish it from softer lookalikes. Quartz occurs worldwide in many rock types and sediments.
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