mineral
Polished Quartz Sphere
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, typically white or translucent to clear, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, typically white or translucent to clear, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed through various geological processes including hydrothermal veins, pegmatites, and sedimentary deposition over millions of years.
Uses & applications
Commonly used in decorative polished spheres, crystal healing, metaphysical practices, and lapidary art.
Geological facts
Quartz is one of the most abundant minerals in the Earth's continental crust and exhibits piezoelectric properties, meaning it can generate an electrical charge in response to mechanical stress.
Field identification & locations
Easily recognized by its high hardness (scratches glass), lack of cleavage, and smooth spherical shape resulting from expert tumbling and polishing.
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Schist
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Metamorphic
Potassium Feldspar (Orthoclase)
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