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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Marquise Diamond Ring
Moonstone
Moonstone
Oppenheimer Diamond
Orbicular agate
Orthoclase
Paravauxite
Pearson Diamond
Phosphophyllite
Portuguese Diamond
Pyrope (var. rhodolite)
Quartz
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Quartz with Fluorite
Rhodochrosite
Ruby and Diamond Brooch
Scapolite
Scapolite
Shepard Diamond
Southwest Sunset
Spessartine
Spinel
Spinel
Spinel ring
Staurolite
Sugilite
Sunstone
Titanite
Titanite
Topaz Gems
Unusual Gems
Unusual Gems
Unusual Gems
Victoria-Transvaal Diamond
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