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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Petalite
Phosphophyllite
Portuguese Diamond
Poudretteite
Quartz (var. ametrine)
Quartz Gems
Rhodochrosite
Ruby and Diamond Brooch
Scapolite
Shepard Diamond
Southwest Sunset
Spinel Bracelet
Spinels
Star of Asia
Sugilite
Sylvanite
Unusual Gems
Victoria-Transvaal Diamond
Vivianite with pyrite
Pagination
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