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Quartz Gems

This assortment of quartz gems exhibits a variety of cutting styles and includes amethyst (purple), rose quartz (pink), citrine (gold-orange-yellow), smoky quartz (brown-gray-black), rock crystal (colorless), and ametrine (part amethyst/part citrine - bi-color). The largest gem, the shield-shaped citrine (center top), is 636.55 carats. Most of these quartz gems are from Brazil, however some are from Bolivia (two ametrines), Switerzland (smoky quartz), and the U.S. (octagonal cut amethyst).

Image Number: 95-40260
Catalog Number: see acquisition info
Weight: 15.87-636.55 carats


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Smithsonian National Museum of Natural History Department of Mineral Sciences website Credits