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Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
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GeoGallery
Fluorites
Labradorite Sunstone
Limestone with chert
Opal
Opal bone
Oregon Sunstones
Quartz (var. agate)
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Sunstones
Under the Sea Sunstone Carving
Unusual Gems
Vanadinite with romanechite
Willamette
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