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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Nautilus Tourmaline Pendant
Nigerian tourmalines
Paravauxite
Phosphophyllite
Pyrope
Pyrope (var. rhodolite)
Pyrope (var. rhodolite)
Quartz (var. ametrine)
Quartz Gems
Rosser Reeves Star Ruby
Sandstone
Scapolite
Scapolite
Southwest Sunset
Spinel
Spinel
Spinel
Spinel ring
Spinels
Star of Bombay
Star of Katandru
Star Sapphire Necklace
Sunstone
Unusual Gems
Vivianite with pyrite
Zagami
Zircon
Zircon
Zircons
Zoisite
Zoisite ( var. tanzanite)
Zoisite (var. tanzanite)
Zoisite (var. tanzanite)
Zoisites
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