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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
African Gems
Aragonite (var. flos ferri)
Attaway Ametrine
Azurite in malachite
Azurite with malachite
Azurite with malachite
Azurite with malachite
Basalt lava
Beryl (var. emerald)
Bismuth
Calcite
Calcite
Calcite
Canyon Diablo
Canyon Diablo
Canyon Diablo
Cuprite on copper
Dyber Ametrine
Elbaite
Fire agate
Fluorite
Lafayette
Lafayette
Marcasite
Millerite
Paravauxite
Pearl and Peridot Haircomb
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Phosphophyllite
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz (var. landscape agate)
Quartz Gems
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