A mineral that is a form of silica which commonly occurs as crystals. When free from impurities it is colourless and limpid (rock crystal) but it is also found in many colours.There are three basic varieties:Crystalline, including amethyst, citrine, rose quartz, cairngorm, morion, smoky quartz, milky quartz, and cat's-eye quartz.Cryptocrystalline, including chalcedony (in several varieties), plasma (bloodstones), and flint.Massive, including quartzite, aventurine quartz, and jasper.Some quartz displays a chatoyant effect when properly cut en cabochon, resulting in a variety of cat's-eyestones. Quartz has a vitreous lustre and is piezoelectric, making it useful for broadcast emission and accurate timepieces.
Quartz
This glossary entry has not yet been updated and is under review.
Explanation on quartz by Adin antique jewelry
Adin Academy
Quartz
No items found.
A mineral that is a form of silica which commonly occurs as crystals. When free from impurities it is colourless and limpid (rock crystal) but it is also found in many colours.There are three basic varieties:Crystalline, including amethyst, citrine, rose quartz, cairngorm, morion, smoky quartz, milky quartz, and cat's-eye quartz.Cryptocrystalline, including chalcedony (in several varieties), plasma (bloodstones), and flint.Massive, including quartzite, aventurine quartz, and jasper.Some quartz displays a chatoyant effect when properly cut en cabochon, resulting in a variety of cat's-eyestones. Quartz has a vitreous lustre and is piezoelectric, making it useful for broadcast emission and accurate timepieces.
Also known as:
References
From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson
Want to share your feedback or input on this Academy article?
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.