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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Attaway Ametrine
Baryte with berthierite
Beryl
Beryl (var. emerald)
Beryl (var. heliodor)
Bismuth
Bununu
Calcite on galena
Corundum (var. sapphire)
Cronstedtite
Demantoid with serpentine
Dyber Ametrine
Elbaite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Gypsum with sulphur
Halite
Halite
Mezö-Madaras
Nautilus Tourmaline Pendant
Nigerian tourmalines
Paravauxite
Phosgenite
Phosphophyllite
Quartz (var. ametrine)
Quartz Gems
Southwest Sunset
Spessartine
Sulfur
Sylvanite
Unusual Gems
Vigarano
Vivianite with pyrite
Pagination
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