mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and hexagonal crystal system.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of magma or precipitation from silica-rich solutions.
Uses & applications
Widely used in electronics, glassmaking, abrasives, and as a polished gemstone in jewelry.
Geological facts
Quartz is one of the most abundant and versatile minerals found in the Earth's continental crust.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and distinct conchoidal fracture.
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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