mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale. Color: Translucent grayish-white with sparkling surface facets. Luster: Vitreous to greasy. Crystal structure: Hexagonal/trigonal. Cleavage: None (conchoidal fracture). Specific gravity: 2.65.
- Hardness
- 7 on Mohs scale
- Color
- Translucent grayish-white with sparkling surface facets
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 7 on Mohs scale. Color: Translucent grayish-white with sparkling surface facets. Luster: Vitreous to greasy. Crystal structure: Hexagonal/trigonal. Cleavage: None (conchoidal fracture). Specific gravity: 2.65.
Formation & geological history
Formed through crystallisation from hydrothermal fluids or cooling igneous magmas in various geological environments, including pegmatites and quartz veins.
Uses & applications
Used in mineral collections, educational kits, jewelry, and industrial applications such as glassmaking, electronics, and abrasives.
Geological facts
Quartz is the second most abundant mineral in the Earth's continental crust after feldspar, and its name originates from the German word 'Quarz'.
Field identification & locations
Identified by its ability to scratch glass (hardness 7) and lack of cleavage. Common in riverbeds, gravel deposits, and mountainous veins worldwide.
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Other mineral specimens
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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