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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Basaltic cinder
Estherville meteorite
Fluorite
Freedom Diamond
Hemimorphite
Homestead
Johnstown
Labradorite Sunstone
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nifontovite
Oregon Sunstones
Pentahydroborite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Stibnite
Sunstones
Topaz Gems
Under the Sea Sunstone Carving
Willamette
Zircon (var. cyrtolite)
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