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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Elbaites
Fire agate
Jeremejevite
Kyanite schist
Liddicoatite
Liddicoatite slices
Missouri River Sapphires
Montana Sapphires
Nautilus Tourmaline Pendant
Nigerian tourmalines
Orbicular agate
Orthoclase
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Quartz
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Quartz with Fluorite
Rock Creek Sapphires
Sandstone
Smithsonite
Smithsonites
Spessartine
Titanite
Titanite
Topaz Gems
Unusual Gems
Unusual Gems
Unusual Gems
Veszelyite
Wulfenite
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