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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Agate
Ahumada
Alexandrites
Arkose
Augen gneiss block
Azurite
Basalt
Basaltic cinder
Calcite
Calcite
Calcite
Carbo
Carlton iron meteorite
Cat's Eyes
Corundum (var. ruby)
Corundum (var. sapphire)
Corundum (var. sapphire)
Corundum (var. star sapphire)
Dravite
Fire Opal
Fire Opal
Fort Stockton
George Pendant
Grossular Garnets
Grossular Garnets
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Johnstown
Logan Sapphire
Maharani Cat's Eye
Manganoan calcite
Pagination
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