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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Beryl (var. aquamarine)
Beryl (var. green beryl)
Black Opal Ring
Cordierite (var. iolite)
Cordierite (var. iolite)
Dark Jubilee Opal
Grossular Garnets
Hope Diamond
Opal
Opal
Opal
Opal Peacock Brooch
Quartz (var. dendritic agate)
Tiffany Opal Necklace
Unusual Gems
Van Buren Pearls
Yowah Opal Nut
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