Quartz
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Physical & Optical Properties
Mohs Hardness
Crystal System
Value & Market
Where to Buy Quartz
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About Quartz
Quartz is the most abundant single mineral on Earth's continental crust, occurring in a vast array of colors and varieties including amethyst, citrine, rose quartz, smoky quartz, and rock crystal, all composed of silicon dioxide. Its hardness of 7, durability, and wide range of appearances have made it one of humanity's most utilized minerals for tools, jewelry, and technology since prehistoric times. Quartz crystals are also piezoelectric, enabling their use in watches, electronics, and precision instruments.
Jewelry Use
Suitable for daily wear