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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Attaway Ametrine
Augen gneiss block
Basalt drill core
Basalt drill core
Basalt drill core
Basaltic cinder
Bismarck Sapphire Necklace
Bismuth
Burmese Ruby Bracelet
Carmen LĂșcia Ruby
Cat's Eyes
Corundum (var. ruby)
Corundum (var. sapphire)
Danburite
Dyber Ametrine
Fluorites
Harriman
Hemimorphite
Jadeite
Jadeitite
Johnstown
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Moonstone
Olivine-basalt drill core
Paravauxite
Peridot gemstones
Peridotite xenoliths in basalt
Petalite
Phosphophyllite
Poudretteite
Quartz (var. agate)
Quartz (var. ametrine)
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