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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
Calcite
Corundum (var. sapphire)
Dyscrasite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Estherville meteorite
Freedom Diamond
Gypsum
Hemimorphite
Homestead
Johnstown
Lost City meteorite
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nakhla
Nautilus Tourmaline Pendant
Nigerian tourmalines
Peridot gemstones
Pyrope Hair Comb
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Sphalerite
Zagami
Zircon (var. cyrtolite)
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