mineral
Clear Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, clear to milky white color, vitreous luster, hexagonal crystal structure, conchoidal fracture, and specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, clear to milky white color, vitreous luster, hexagonal crystal structure, conchoidal fracture, and specific gravity of 2.65.
Formation & geological history
Forms in igneous, sedimentary, and metamorphic rocks, typically from silica-rich hydrothermal solutions or as a primary mineral in pegmatites.
Uses & applications
Used in electronics, optics, glassmaking, and jewelry, as well as being a popular collectible specimen.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and is known for its piezoelectric properties.
Field identification & locations
Identified by its hardness (scratches glass), conchoidal fracture, and lack of cleavage; commonly found worldwide.
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Septarian Pebble
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