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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Attaway Ametrine
Banded iron formation
Beryl (var. emerald)
Bismuth
Cape York
Cornetite
Dyber Ametrine
Farmville
Folded anorthosite
Granite block
Malachite
Malachite slab
Metatorbernite
Olivine-gabbro
Paravauxite
Phosphophyllite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Quartz Pendant
Southwest Sunset
Tugtupite
Vivianite with pyrite
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