mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or translucent color, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, typically white or translucent color, vitreous luster, hexagonal crystal system, conchoidal fracture, and specific gravity of 2.65.
Formation & geological history
Formed through crystallization from silica-rich hydrothermal solutions or magmas, and often weathered and rounded by water transport in rivers or beaches over millions of years.
Uses & applications
Used in glassmaking, abrasives, electronics, ornamental items, and as a common landscaping or decorative stone.
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 (scratches glass), lack of cleavage, and resistance to acid. Found worldwide in stream beds, beaches, and sedimentary deposits.
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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
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