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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Basaltic cinder
Beryl
Beryl (var. heliodor)
Bismarck Sapphire Necklace
Bununu
Burmese Ruby Bracelet
Calcite
Carmen LĂșcia Ruby
Cat's Eyes
Corundum (var. ruby)
Corundum (var. sapphire)
Corundum (var. sapphire)
Danburite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorites
Freedom Diamond
Hemimorphite
Hubnerite with quartz
Jadeite
Jadeitite
Johnstown
Manganoan calcite
Marble with wollastonite
Microcline (var. amazonite)
Migmatite
Millerite
Millerite with hematite and quartz
Moonstone
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Pagination
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