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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Actinolite
Banded iron formation
Basalt drill core
Basalt drill core
Basalt drill core
Columnar dacite
Ensisheim
Gypsum
Juvinas
Lost City meteorite
Olivine-basalt drill core
Olivine-gabbro
Orgueil meteorite
Peridotite xenoliths in basalt
Pyromorphite
Quartz (var. agate)
Quartz on siderite
Sphalerite
Staurolite
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