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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Agate
Ahumada
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Azurite
Baryte
Basalt
Basalt bomb
Calcite
Calcite
Calcite
Calcite
Carbo
Chrome Diopside
Elbaite
Elbaite
Fire Opal
Fire Opal
Fluorite
Fluorite
Fluorites
Galena with chalcopyrite, sphalerite, and others
Grossular (var. tsavorite)
Grossular (var. tsavorite) and Elbaite
Gypsum
Gypsum
Gypsum
Hematite
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Mimetite
Nuevo Mercurio
Opal (var. hyalite)
Pagination
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