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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Attaway Ametrine
Baryte
Basalt bomb
Bismuth
Calcite
Chrome Diopside
Dyber Ametrine
Fluorite
Fluorite
Fluorites
Galena with chalcopyrite, sphalerite, and others
Hematite
Monazite
Paravauxite
Peridot gemstones
Perovskite
Phosphophyllite
Platinum nugget
Pyrrhotite
Quartz (var. ametrine)
Quartz Gems
Russian beryls
Russian chrysoberyls
Schneider Tanzanite Ring
Sikhote-Alin
Southwest Sunset
Sperrylite
Tiffany Amethyst Necklace
Topaz Gems
Vivianite with pyrite
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