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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amblygonite
Black Opal Ring
Calcite
Calcite
Corundum (var. padparadscha sapphire)
Corundum (var. sapphire)
Cullinan Blue Diamond Necklace
Elbaite
Elbaite
Elbaite
Enstatite
Ethiopian Opals
Fluorite
Fluorite
Fluorite
Grossular (var. tsavorite)
Moonstone
Nautilus Tourmaline Pendant
Nifontovite
Opal
Opal
Pentahydroborite
Peridot
Petersen Tanzanite Brooch
Phosgenite
Post Diamond Tiara
Pyrope (var. rhodolite)
Quartz
Quartz
Quartz (var. amethyst)
Rhodonite
Royal Butterfly Brooch
Rutile
Scapolite
South Sea Pearl Ring
Spessartine
Pagination
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