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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Beryl (var. aquamarine)
Beryl (var. green beryl)
Bismarck Sapphire Necklace
Black Opal Ring
Burmese Ruby Bracelet
Carmen LĂșcia Ruby
Cat's Eyes
Corundum (var. sapphire)
Danburite
Dark Jubilee Opal
Dyber Ametrine
Jadeite
Moonstone
Opal
Opal
Opal
Opal Peacock Brooch
Peridot gemstones
Petalite
Phosphophyllite
Poudretteite
Quartz (var. ametrine)
Quartz Gems
Scapolite
Southwest Sunset
Spinel Bracelet
Spinels
Star of Asia
Tiffany Opal Necklace
Unusual Gems
Yowah Opal Nut
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