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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Basalt bomb
Chrome Diopside
Galena with chalcopyrite, sphalerite, and others
Labradorite Sunstone
Limestone with chert
Muscovite schist
Opal
Opal bone
Oregon Sunstones
Perovskite
Platinum nugget
Pyritic slate
Pyrrhotite
Quartz (var. agate)
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Russian beryls
Russian chrysoberyls
Sandstone
Sikhote-Alin
Sperrylite
Sunstones
Tiffany Amethyst Necklace
Topaz Gems
Under the Sea Sunstone Carving
Willamette
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