
mineral
Quartz and Mixed Minerals
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, and lack of cleavage with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, hexagonal crystal system, and lack of cleavage with conchoidal fracture.
Formation & geological history
Formed in various geological environments including igneous pegmatites, hydrothermal veins, and sedimentary processes.
Uses & applications
Used extensively in jewelry, electronics, glassware, and as decorative mineral specimens.
Geological facts
Quartz is one of the most abundant and varied minerals in Earth's continental crust, existing in numerous color varieties like citrine, amethyst, and milky quartz.
Field identification & locations
Easily identified in the field by its high hardness (scratches glass) and characteristic conchoidal fracture; found globally worldwide.