mineral
Tumbled clear quartz
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectMohs hardness 7; transparent to faintly pinkish-clear with a glassy luster. Trigonal crystal structure, no cleavage, and conchoidal fracture; tumbling has smoothed the edges.
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Physical properties
Mohs hardness 7; transparent to faintly pinkish-clear with a glassy luster. Trigonal crystal structure, no cleavage, and conchoidal fracture; tumbling has smoothed the edges.
Formation & geological history
Quartz crystallizes from silica-rich fluids and melts in many rock types; its geological formation spans a vast range of ages. This small polished piece was likely shaped by mechanical tumbling.
Uses & applications
Used in jewelry, ornaments, and collecting; quartz also has major industrial uses in glassmaking and electronics.
Geological facts
Quartz is one of Earth’s most abundant minerals and can occur in igneous, sedimentary, and metamorphic rocks.
Field identification & locations
Look for glassy transparency, hardness sufficient to scratch ordinary glass, and lack of cleavage. Clear quartz is common worldwide; this piece’s exact source cannot be determined visually.
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Undetermined; the image is too blurry for reliable identification
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