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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Adamite
Albite (var. moonstone)
Amazonite
Apophyllite with prehnite
Basalt drill core
Basalt drill core
Basalt drill core
Calcite
Dolerite
Fluorites
Kyanite after andalusite
Limestone with chert
Marble with wollastonite
Millerite
Millerite with hematite and quartz
Olivine-basalt drill core
Opal
Opal bone
Peekskill
Peridotite xenoliths in basalt
Quartz (var. amethyst)
Quinn Canyon
Rhodochrosite with arsenopyrite
Roebling Opal
Sandstone
Stalagmite
Staunton
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