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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Aurichalcite with hemimorphite
Basaltic cinder
Beryl
Beryl
Beryl (var. heliodor)
Bununu
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Gypsum
Hemimorphite
Johnstown
Lost City meteorite
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Sandstone
Schneider Tanzanite Ring
Sphalerite
Zagami
Zircon (var. cyrtolite)
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