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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Nautilus Tourmaline Pendant
Nigerian tourmalines
Perovskite
Platinum nugget
Pyrope
Pyrope (var. rhodolite)
Pyrope (var. rhodolite)
Pyrrhotite
Rosser Reeves Star Ruby
Russian beryls
Russian chrysoberyls
Scapolite
Scapolite
Sikhote-Alin
Sperrylite
Spinel
Spinel
Spinel
Spinel ring
Spinels
Star of Bombay
Star of Katandru
Star Sapphire Necklace
Sunstone
Tiffany Amethyst Necklace
Topaz Gems
Unusual Gems
Zagami
Zircon
Zircon
Zircons
Zoisite
Zoisite ( var. tanzanite)
Zoisite (var. tanzanite)
Zoisite (var. tanzanite)
Zoisites
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