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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Banded iron formation
Basalt drill core
Basalt drill core
Basalt drill core
Basaltic cinder
Freedom Diamond
Gypsum
Hemimorphite
Johnstown
Lost City meteorite
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Olivine-basalt drill core
Olivine-gabbro
Paragould
Peridotite xenoliths in basalt
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Smithsonites
Sphalerite
Success meteorite
Uncle Sam Diamond
Yellow diamond crystal
Zircon (var. cyrtolite)
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