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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Garnetiferous schist
Granite block
Grossular (var. tsavorite)
Grossular (var. tsavorite)
Grossular Garnet
Grossular Garnets
Labradorite Sunstone
Limestone with chert
Opal
Opal bone
Oregon Sunstones
Pegmatite
Quartz (var. agate)
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Sunstones
Under the Sea Sunstone Carving
Willamette
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