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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Arkose
Augen gneiss block
Basaltic cinder
Beryl
Beryl (var. heliodor)
Bununu
Corundum (var. sapphire)
Demantoid with serpentine
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Freedom Diamond
Garnetiferous schist
Granite block
Gypsum with sulphur
Hemimorphite
Johnstown
Kyanite
Kyanite
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Paragould
Pegmatite
Phosgenite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Smithsonites
Success meteorite
Sulfur
Uncle Sam Diamond
Pagination
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