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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Nautilus Tourmaline Pendant
Nigerian tourmalines
Oppenheimer Diamond
Paravauxite
Pearson Diamond
Peridot gemstones
Petalite
Phosphophyllite
Portuguese Diamond
Poudretteite
Pyromorphite
Quartz (var. ametrine)
Quartz Gems
Rhodochrosite
Ruby and Diamond Brooch
Scapolite
Scheelite
Shepard Diamond
Southwest Sunset
Spinel Bracelet
Spinels
Star of Asia
Sugilite
Unusual Gems
Victoria-Transvaal Diamond
Vivianite with pyrite
Zagami
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