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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)
Bununu
Chabazite
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Ensisheim
Estherville meteorite
Freedom Diamond
Hemimorphite
Homestead
Johnstown
Juvinas
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Orgueil meteorite
Prehnite
Pyromorphite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Quartz on siderite
Rhodochrosite
Staurolite
Unusual Gems
Unusual Gems
Zagami
Zincite
Pagination
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