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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Moonstone
Moonstone
Moonstone
Nautilus Tourmaline Pendant
Nigerian tourmalines
Orthoclase (var. adularia)
Peridot gemstones
Perovskite
Petalite
Platinum nugget
Poudretteite
Pyrope (var. rhodolite)
Pyrrhotite
Quartz (var. smoky quartz)
Quartz Gems
Russian beryls
Russian chrysoberyls
Scapolite
Scapolite
Scapolite
Siderite
Sikhote-Alin
Sperrylite
Spinel
Spinel
Spinel Bracelet
Spinel ring
Spinels
Star of Asia
Sunstone
Tiffany Amethyst Necklace
Topaz Gems
Zagami
Zircon
Zircon
Zoisite
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