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Smithsonian National Museum of Natural History
GeoGallery
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Agate
Ahumada
Alexandrites
Azurite
Basalt
Bismarck Sapphire Necklace
Burmese Ruby Bracelet
Calcite
Calcite
Calcite
Carbo
Carmen Lúcia Ruby
Cat's Eyes
Corundum (var. ruby)
Corundum (var. ruby)
Corundum (var. sapphire)
Corundum (var. sapphire)
Corundum (var. star sapphire)
Danburite
Dravite
Fire Opal
Fire Opal
George Pendant
Grossular Garnets
Grossular Garnets
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Jadeite
Jadeitite
Logan Sapphire
Maharani Cat's Eye
Mimetite
Pagination
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