mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or gray in color, vitreous luster, hexagonal crystal system, and lacks cleavage with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, typically white or gray in color, vitreous luster, hexagonal crystal system, and lacks cleavage with conchoidal fracture.
Formation & geological history
Formed through crystallization in igneous, metamorphic, and sedimentary environments, highly resistant to weathering allowing it to survive as rounded stream pebbles.
Uses & applications
Used in glassmaking, abrasives, electronics, and as decorative landscape or ornamental stones.
Geological facts
Quartz is one of the most abundant and durable minerals in Earth's continental crust. Its piezoelectric properties make it essential for regulating frequency in electronic devices.
Field identification & locations
Easily identified by its high hardness (scratches glass) and conchoidal fracture. Commonly found in riverbeds, beaches, and sedimentary deposits worldwide.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous