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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Attaway Ametrine
Augen gneiss block
Basaltic cinder
Beryl (var. emerald)
Bismuth
Dyber Ametrine
Elbaites
Farmville
Granite
Granite block
Havey Tourmaline
Hemimorphite
Johnstown
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Paravauxite
Phosphophyllite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz (var. smoky quartz) with microcline
Quartz Gems
Quartz Pendant
Rhodochrosite
Southwest Sunset
Staurolite schist
Vivianite with pyrite
Zircon (var. cyrtolite)
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