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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Gold leaf
Gold nugget
Gold on quartz
Gypsum
Hemimorphite
Kyanite after andalusite
Kyanite with biotite
Lawsonite
Manganoan calcite
Marcasite
Merwinite
Mesolite
Microcline (var. amazonite)
Millerite
Millerite
Millerite with hematite and quartz
Missouri River Sapphires
Opal bone
Opal replacing wood
Peridot in Basalt
Prehnite
Pyromorphite
Pyrophyllite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Rhodochrosite
Rock Creek Sapphires
Roebling Opal
Pagination
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