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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Nigerian tourmalines
Opal
Opal
Opal
Opal Peacock Brooch
Opal vertebra
Perovskite
Platinum nugget
Pyrite
Pyromorphite
Pyrope (var. rhodolite)
Pyrrhotite
Russian beryls
Russian chrysoberyls
Scapolite
Scapolite
Sikhote-Alin
Sperrylite
Sphalerite
Spinel
Spinel
Spinel ring
Sunstone
Tiffany Amethyst Necklace
Tiffany Opal Necklace
Topaz Gems
Unusual Gems
Unusual Gems
Yowah Opal Nut
Zagami
Zircon
Zircon
Zoisite
Zoisite ( var. tanzanite)
Zoisite (var. tanzanite)
Zoisite (var. tanzanite)
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