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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Fire Opal
Fluorite with calcite
Fluorite with quartz
Fluorites
Gypsum with sulphur
Hydroxylherderite
Ibitira eucrite
Imperial Topaz
Jolie Citrine Necklace
Kyanite schist
Magnetite
Milarite with chlorite
Napoleon Diamond Necklace
Opal
Orthoclase (var. adularia)
Paraiba Tourmaline
Paraiba Tourmaline
Paraiba Tourmaline
Paraiba Tourmaline Ring
Phosgenite
Post Diamond Tiara
Pyrite
Pyroxmangite
Quartz
Quartz
Quartz (var. amethyst geode)
Quartz (var. amethyst geode)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz (var. citrine)
Quartz (var. rose)
Quartz (var. smoky quartz)
Quartz (var. smoky-citrine)
Quartz (var. smoky-citrine)
Quartz Gems
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