mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous (glassy) luster, white to colorless with minor iron staining, conchoidal fracture, and hexagonal crystal system when fully formed.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous (glassy) luster, white to colorless with minor iron staining, conchoidal fracture, and hexagonal crystal system when fully formed.
Formation & geological history
Formed through crystallization in hydrothermal veins or igneous pegmatites, subsequently weathered, transported by water, and rounded into a pebble over millions of years.
Uses & applications
Used in glass manufacturing, electronics, decorative 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 mechanical weathering.
Field identification & locations
Easily identified by its high hardness (it scratches glass) and lack of cleavage. Commonly found in riverbeds, beaches, and glacial outwash across all continents.
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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
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