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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Aragonite (var. flos ferri)
Arkose
Augen gneiss block
Azurite in malachite
Azurite with malachite
Azurite with malachite
Azurite with malachite
Basalt lava
Basaltic cinder
Calcite
Calcite
Calcite
Canyon Diablo
Canyon Diablo
Canyon Diablo
Corundum (var. sapphire)
Cuprite on copper
Fire agate
Gypsum
Hemimorphite
Johnstown
Lost City meteorite
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Smithsonite
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