mineral
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale; Color: White to translucent; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None
- Hardness
- 7 on Mohs scale
- Color
- White to translucent
- Luster
- Vitreous
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Physical properties
Hardness: 7 on Mohs scale; Color: White to translucent; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None
Formation & geological history
Formed through crystallization in igneous and metamorphic environments, later weathered, transported, and rounded by water action in sedimentary environments.
Uses & applications
Used in landscaping, decorative stone, abrasive manufacturing, and glassmaking.
Geological facts
Quartz is one of the most abundant and durable minerals in the Earth's continental crust, highly resistant to both chemical and mechanical weathering.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage. Commonly found in riverbeds, beaches, and glacial outwash.
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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