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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Agate
Ahumada
Azurite
Basalt
Bismarck Sapphire Necklace
Burmese Ruby Bracelet
Calcite
Calcite
Calcite
Carbo
Carmen Lúcia Ruby
Cat's Eyes
Corundum (var. ruby)
Corundum (var. sapphire)
Danburite
Eclogite
Fire Opal
Fire Opal
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Jadeite
Jadeitite
Mimetite
Moonstone
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Peridot gemstones
Petalite
Pagination
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