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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Actinolite
Afghanite with calcite
Arkose
Augen gneiss block
Basaltic cinder
Bastnäsite with quartz
Beryl
Beryl (var. heliodor)
Bununu
Columnar dacite
Corundum (var. ruby)
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Elbaites
Estherville meteorite
Fluorite
Freedom Diamond
Hemimorphite
Homestead
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
New Concord
Nigerian tourmalines
Picasso Kunzite Necklace
Pollucite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Zagami
Zircon (var. cyrtolite)
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