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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Aurichalcite with hemimorphite
Baryte
Basaltic cinder
Beryl
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorite
Fluorite with calcite and chalcopyrite
Fluorites
Freedom Diamond
Hemimorphite
Hubnerite with quartz
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Rhodochrosite with quartz
Rhodonite
Sandstone
Tetrahedrite
Zagami
Pagination
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