mineral
Quartz in Matrix
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Colors range from clear to smoky brown with earthy host rock.
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Physical properties
Hardness of 7 on Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system. Colors range from clear to smoky brown with earthy host rock.
Formation & geological history
Formed via hydrothermal veins and crystallization within cooling magma chambers or metamorphic environments over millions of years.
Uses & applications
Used in electronics, oscillators, glassmaking, and as a popular mineral specimen for collectors and lapidary work.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identify in the field by its high hardness (scratches glass) and lack of cleavage. Common worldwide in pegmatites and metamorphic rocks.
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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
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous