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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Basaltic cinder
Hemimorphite
Hubnerite with quartz
Johnstown
Labradorite Sunstone
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Opal
Oregon Sunstones
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Rhodochrosite with quartz
Rhodonite
Sunstones
Tetrahedrite
Under the Sea Sunstone Carving
Unusual Gems
Willamette
Zircon (var. cyrtolite)
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