
mineral
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on the Mohs scale. Color: Colorless to white. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (Trigonal). Cleavage: None, exhibits conchoidal fracture. Specific Gravity: 2.65.
- Hardness
- 7 on the Mohs scale
- Color
- Colorless to white
- Luster
- Vitreous (glassy)
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Physical properties
Hardness: 7 on the Mohs scale. Color: Colorless to white. Luster: Vitreous (glassy). Crystal Structure: Hexagonal (Trigonal). Cleavage: None, exhibits conchoidal fracture. Specific Gravity: 2.65.
Formation & geological history
Formed through the crystallization of molten magma or from hydrothermal veins. It is found in all types of geological environments (igneous, metamorphic, and sedimentary) and can be billions of years old.
Uses & applications
Used in electronics (oscillators), glass manufacturing, abrasives, timepieces, and widely used in jewelry and metaphysical collections.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. It is piezoelectric, meaning it generates an electric charge when mechanical stress is applied.
Field identification & locations
Identify by its hardness (it scratches glass), hexagonal crystal habit, and lack of cleavage. Found globally, especially in mountain ranges like the Alps or the Arkansas Ouachita Mountains.
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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