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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Beryl (var. heliodor)
Bismuth
Chinguetti
Clinohumite
Cordierite (var. iolite)
Corundum (var. ruby)
Dyber Ametrine
Nakhla
Paravauxite
Peridot gemstones
Phosphophyllite
Quartz (var. ametrine)
Quartz Gems
Southwest Sunset
Spinel
Vivianite with pyrite
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