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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Basalt drill core
Basalt drill core
Basalt drill core
Basaltic cinder
Beryl
Beryl (var. aquamarine)
Beryl (var. aquamarine) with muscovite
Beryl (var. morganite)
Beryl with microcline and quartz
Corundum (var. ruby)
Fluorite
Fluorite with calcite
Fluorites
Freedom Diamond
Hemimorphite
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Olivine-basalt drill core
Peridot
Peridot
Peridot
Peridot gemstones
Peridotite xenoliths in basalt
Pyrite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Sphalerite
Titanite with calcite and adularia
Triplite
Unusual Gems
Väyrynenite
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