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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
Beryl ( var. trapiche emerald)
Bismuth
Chalk Emerald
Dyber Ametrine
Emerald Carving
Fluorites
Gachala Emerald
Harriman
Hemimorphite
Hooker Emerald
Johnstown
Mackay Emerald Necklace
Manganoan calcite
Maximilian Emerald
Microcline
Microcline (var. amazonite)
Migmatite
Mogul Emerald Necklace
Olivine-basalt drill core
Paravauxite
Parisite with calcite
Peridotite xenoliths in basalt
Phosphophyllite
Post Emerald Necklace
Quartz (var. agate)
Quartz (var. ametrine)
Quartz (var. smoky quartz) with microcline
Quartz Gems
Rhodochrosite
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