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On Exhibit Rock Crystal [G4204]

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Rock Crystal (G4204) from the National Gem Collection

Photograph of a large group of faceted quartz gems from the National Gem Collection


Photo by Chip Clark


Hover over color tiles above to learn what this object tells us about the history of the Earth

Catalog #MineralCountryWeight 
G1283Quartz (var. Amethyst)United States36.20 ctMore info »
G2041Quartz (var. Citrine)Brazil264.75 ctMore info »
G2269Quartz (var. Citrine)Brazil38.882 ctMore info »
G3220Quartz (var. Rock Crystal)Synthetic99.676 ctMore info »
G3293Quartz (var. Smoky Quartz)Switzerland90 ctMore info »
G3420Quartz (var. Rose Quartz)Brazil48.60 ctMore info »
G3421Quartz (var. Rose Quartz)Brazil84 ctMore info »
G3592Quartz (var. Rose Quartz)Brazil374.90 ctMore info »
G3640Quartz (var. Citrine)Brazil781 ctMore info »
G3732Quartz (var. Citrine)Brazil277.90 ctMore info »
G4204Quartz (var. Rock Crystal)Brazil357.9 ctMore info »
G5701Quartz (var. Rock Crystal)Brazil654 ctMore info »
G7721Quartz (var. Citrine)Brazil636.60 ctMore info »
G8143Quartz (var. Amethyst)Unknown Locality15.87 ctMore info »
G9015Quartz (var. Vertrine)Brazil59.803 ctMore info »
G9575Quartz (var. Amethyst)Brazil109.66 ctMore info »
G9576Quartz (var. Ametrine)Bolivia55.68 ctMore info »
G9950Quartz (var. Ametrine)Bolivia24.15 ctMore info »

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).

Images of this specimen

On Exhibit denotes specimens currently on exhibit

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