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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Andesite
Arkose
Augen gneiss block
Banded iron formation
Basalt drill core
Basalt drill core
Basalt drill core
Basalt lava
Basaltic cinder
Columnar dacite
Dolerite
Garnet-bearing monzonite
Garnetiferous schist
Glaucophane schist
Granite
Granite block
Granite block
Kyanite schist
Limestone
Limestone with chert
Marble with wollastonite
Metaconglomerate
Migmatite
Muscovite schist
Olivine-basalt drill core
Olivine-gabbro
Pegmatite
Peridotite xenolith
Peridotite xenolith in basalt
Peridotite xenoliths in basalt
Pyritic slate
Rhyolite
Rhyolite pumice
Sandstone
Sandstone
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