mineral
Clear Quartz Point
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 on Mohs scale; Color: Colorless to milky white; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None, exhibits conchoidal fracture; Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- Colorless to milky white
- Luster
- Vitreous (glassy)
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Physical properties
Hardness: 7 on Mohs scale; Color: Colorless to milky white; Luster: Vitreous (glassy); Crystal Structure: Hexagonal (trigonal); Cleavage: None, exhibits conchoidal fracture; Specific Gravity: 2.65
Formation & geological history
Formed from silica-rich hydrothermal solutions or the cooling of magma in pegmatites. It can be found in igneous, metamorphic, and sedimentary environments worldwide.
Uses & applications
Used in electronics (oscillators), optics, glassmaking, abrasives, jewelry, and as a popular specimen for collectors.
Geological facts
Quartz is one of the most abundant minerals in Earth's crust. It is piezoelectric, meaning it generates an electric charge when mechanical pressure is applied.
Field identification & locations
Identify by its hexagonal crystal habit, lack of cleavage, and ability to scratch glass. It is commonly found in mountain ranges and riverbeds globally.
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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
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Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Calcite–fluorite mineral specimen with iron-oxide staining
Calcite (CaCO₃), likely fluorite (CaF₂), with possible quartz and iron/manganese oxides
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