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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Baryte with berthierite
Basalt bomb
Carlton iron meteorite
Chrome Diopside
Cronstedtite
Fort Stockton
Galena with chalcopyrite, sphalerite, and others
Limestone with chert
Mezö-Madaras
Opal
Opal bone
Perovskite
Plainview
Plantersville
Platinum nugget
Pyrrhotite
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Russian beryls
Russian chrysoberyls
Sandstone
Sikhote-Alin
Sperrylite
Sylvanite
Tiffany Amethyst Necklace
Topaz Gems
Topaz Pendant
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