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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Agate
Ahumada
Andradite (var. demantoid)
Andradite (var. demantoid)
Azurite
Baryte
Basalt
Cafarsite
Calcite
Calcite
Calcite
Calcite
Calcite with duftite
Carbo
Demantoid Bracelet
Descloizite in dolomite
Fire Opal
Fire Opal
Fluorite
Fluorite
Fluorite with quartz
Fluorites
Gypsum
Gypsum
Gypsum
Hematite
Hemimorphite
Hemimorphite
Hoba
Hoba
Hologem Fire Opal Pendant
Jeremejevite
Kyanite schist
Ludlockite with smithsonite
Magnetite
Pagination
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