mineral
White Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to milky color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to milky color, vitreous to greasy luster, trigonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich solutions or magma over millions of years.
Uses & applications
Widely used in electronics, glassmaking, abrasive powders, and as a popular tumbled gemstone or collector specimen.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage; found globally in pegmatites, veins, and quartzites.
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Gneiss or Mica Schist with Garnet
Metamorphic
Limonite
FeO(OH)•nH2O
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Limonite
FeO(OH)•nH2O
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Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
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igneous
Feldspar
Feldspar Group (Tectosilicate, e.g., KAlSi3O8)
mineral