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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Almandine schist
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
Carlton iron meteorite
Cuprite on copper
Fire agate
Fort Stockton
Freedom Diamond
Hemimorphite
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Plainview
Plantersville
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Quartz (var. smoky quartz) with microcline
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