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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Banded iron formation
Bismarck Sapphire Necklace
Burmese Ruby Bracelet
Calcite
Carmen LĂșcia Ruby
Cat's Eyes
Corundum (var. ruby)
Corundum (var. sapphire)
Danburite
Danburite
DeYoung Pink Diamond
Enstatite
Fluorite
Fluorites
Grossular Garnets
Jadeite
Jadeitite
Limestone with chert
Moonstone
Moonstone
Moonstone
Olivine-gabbro
Opal
Opal bone
Peridot gemstones
Petalite
Poudretteite
Pyrope (var. rhodolite)
Quartz (var. agate)
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Scapolite
Scapolite
Scapolite
Pagination
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