mineral
Quartz with Associated Minerals
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, transparent to opaque, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to opaque, vitreous luster, hexagonal crystal system, conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed in hydrothermal veins and pegmatites through the cooling of silica-rich fluids over geological timescales.
Uses & applications
Used in electronics, optical equipment, decorative items, and mineral collecting.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its hardness (scratches glass) and conchoidal fracture. Found worldwide in various geological settings.
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Arenite (SiO2 based)
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Soil with Mineral Detritus and Quartz Fragments
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Limonite / Goethite (Iron Ore Mineral nodule)
FeO(OH)·nH2O / FeO(OH)
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Schist
Schist
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Septarian Pebble
Septarian nodule / Concretion
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Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
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