mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale; Color: Clear, white, gray, or various tinges; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None; Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Clear, white, gray, or various tinges
- Luster
- Vitreous
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Physical properties
Hardness: 7 on Mohs scale; Color: Clear, white, gray, or various tinges; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None; Specific Gravity: 2.65
Formation & geological history
Formed in a wide variety of geological environments, frequently in igneous, metamorphic, and sedimentary rocks as a primary constituent or hydrothermal vein mineral.
Uses & applications
Used in electronics, oscillators, glass manufacture, abrasive materials, and gemstone jewelry.
Geological facts
Quartz is one of the most abundant minerals found in the Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Can be identified by its characteristic crystal habit, high hardness (scratches glass), and conchoidal fracture. Found 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
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