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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Actinolite
Arkose
Augen gneiss block
Basalt drill core
Basalt drill core
Basalt drill core
Basaltic cinder
Cape York
Columnar dacite
Folded anorthosite
Freedom Diamond
Hemimorphite
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nakhla
Olivine-basalt drill core
Peridot gemstones
Peridotite xenoliths in basalt
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Tugtupite
Zircon (var. cyrtolite)
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