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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Basalt drill core
Basalt drill core
Basalt drill core
Beryl
Beryl (var. aquamarine)
Beryl (var. aquamarine) with muscovite
Beryl (var. morganite)
Beryl with microcline and quartz
Carlton iron meteorite
Corundum (var. ruby)
Fluorite
Fort Stockton
Limestone with chert
Olivine-basalt drill core
Opal
Opal bone
Peridot
Peridot
Peridot
Peridot gemstones
Peridotite xenoliths in basalt
Plainview
Plantersville
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Titanite with calcite and adularia
Topaz Gems
Topaz Pendant
Triplite
Unusual Gems
Väyrynenite
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