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Rock Crystal [G4204]
Photograph of a large group of faceted quartz gems from the National Gem Collection
Photo by Chip Clark
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About this object
This assortment of gems exhibits different cutting styles and includes the many varieties of the mineral quartz: 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), Switzerland (smoky quartz), and the U.S. (octagonal cut amethyst).
denotes specimens currently on exhibit
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