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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Arkose
Augen gneiss block
Basalt bomb
Basaltic cinder
Carlton iron meteorite
Chrome Diopside
Fort Stockton
Freedom Diamond
Galena with chalcopyrite, sphalerite, and others
Hemimorphite
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Perovskite
Plainview
Plantersville
Platinum nugget
Pyrrhotite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Russian beryls
Russian chrysoberyls
Schneider Tanzanite Ring
Sikhote-Alin
Sperrylite
Tiffany Amethyst Necklace
Topaz Gems
Topaz Pendant
Zircon (var. cyrtolite)
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