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1. www.britannica.com › science › rock-crystalRock crystal | Healing, Jewelry & Clarity | Britannica

   www.britannica.com › science › rock-crystal

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   May 10, 2024 · Rock crystal, transparent variety of the silica mineral quartz that is valued for its clarity and total lack of colour or flaws. Vessels and spheres have been carved from large crystals since ancient times, and the application of the word crystal to fine glassware derives from this practice.

   • Quartz

     rock crystal. smoky quartz. quartz, widely distributed...

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3. en.wikipedia.org › wiki › QuartzQuartz - Wikipedia

   en.wikipedia.org › wiki › Quartz

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   Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent and has often been used for hardstone carvings, such as the Lothair Crystal. Common colored varieties include citrine, rose quartz, amethyst, smoky quartz, milky quartz, and others.

4. www.gemstone.org › rock-crystal-quartzRock Crystal Quartz - International Colored Gemstone Association

   www.gemstone.org › rock-crystal-quartz

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   Learn about the history, properties and varieties of rock crystal quartz, also known as clear quartz, the birthstone for April. Discover how this gemstone is used in jewelry, carvings and watches, and how it generates electricity and reflects light.

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     The Composition of Rocks: Mineral Crystallinity and Bonding Types

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     Digging Natural Rainbow Rock Crystals @ Graves Mt in Georgia

     23 Nov 2016

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     How to Identify Metamorphic Rocks and Not Mistake them for Igneous Rock | Foliation and Crystals

     27 Feb 2022

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6. geology.com › minerals › quartzQuartz Mineral | Photos, Uses, Properties, Pictures - Geology.com

   geology.com › minerals › quartz

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   Quartz is a common and versatile mineral composed of silicon and oxygen. It has many uses in glass, abrasives, foundry sand, gemstones, and more. Learn about its physical properties, varieties, and how to identify it.

   • Chemical Classification: Silicate
   • Luster: Vitreous

   • Diaphaneity: Transparent to translucent
   • Streak: Colorless (harder than the streak plate)

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7. www.allcrystal.com › crystals › quartzQuartz: Meaning, Properties, and Benefits You Should Know - All...

   www.allcrystal.com › crystals › quartz

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   Known by alternative names like “ Rock Crystal ” and “Crystal Quartz,” this gemstone highlights its crystalline purity and transparency. Traditionally, Quartz has symbolized spiritual power and healing energy while representing harmony and balance in modern times.

8. www.crystalvaults.com › crystal-encyclopedia › quartQuartz Meanings and Uses - Crystal Vaults

   www.crystalvaults.com › crystal-encyclopedia › quart

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   Learn about the properties, types and history of Quartz, also known as Rock Crystal, the most common and diverse mineral family. Quartz is a master healer, a window of light and a source of spiritual guidance and energy.

9. www.britannica.com › science › quartzQuartz | Definition, Types, Uses, & Facts | Britannica

   www.britannica.com › science › quartz

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   May 30, 2024 · Quartz is a widespread mineral of many varieties, including rock crystal, amethyst, and citrine. It has various applications in industry, optics, and gemstones, and it undergoes different forms and phases under temperature and pressure.