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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Agate
Ahumada
Alexandrites
Azurite
Basalt
Bismuthinite
Calcite
Calcite
Calcite
Calcite in betekhtinite
Carbo
Cat's Eyes
Corundum (var. ruby)
Corundum (var. sapphire)
Corundum (var. sapphire)
Corundum (var. star sapphire)
Creedite with pyrite
Dravite
Elbaite
Elbaite
Fire Opal
Fire Opal
George Pendant
Grossular (var. tsavorite)
Grossular (var. tsavorite) and Elbaite
Grossular Garnets
Grossular Garnets
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Logan Sapphire
Maharani Cat's Eye
Pagination
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