mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and a trigonal crystal system with distinct hexagonal prisms.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and a trigonal crystal system with distinct hexagonal prisms.
Formation & geological history
Formed from silica-rich hydrothermal solutions cooling within cavities or fractures in the Earth's crust over millions of years.
Uses & applications
Widely used in electronics, precision instruments, glassmaking, and as a popular specimen for mineral collectors and jewelry.
Geological facts
Quartz is one of the most abundant and versatile minerals on Earth, exhibiting piezoelectric properties that make it essential for keeping time in watches.
Field identification & locations
Identified by its crystal habit, lack of cleavage, and ability to scratch glass easily; commonly found in pegmatites and hydrothermal veins worldwide.
