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Smithsonian National Museum of Natural History
GeoGallery
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Arkose
Augen gneiss block
Basaltic cinder
Beryl ( var. trapiche emerald)
Chalk Emerald
Emerald Carving
Fluorites
Gachala Emerald
Hemimorphite
Hooker Emerald
Johnstown
Mackay Emerald Necklace
Manganoan calcite
Maximilian Emerald
Microcline
Microcline (var. amazonite)
Migmatite
Mogul Emerald Necklace
Parisite with calcite
Post Emerald Necklace
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Sokol Emerald Necklace
Zircon (var. cyrtolite)
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