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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Basalt drill core
Basalt drill core
Basalt drill core
Cafarsite
Estherville meteorite
Fluorite
Fluorite with quartz
Fluorites
Galena with pyrite and marcasite
Homestead
Kyanite schist
Lafayette
Lafayette
Magnetite
Marcasite
Milarite with chlorite
Olivine-basalt drill core
Orthoclase (var. adularia)
Pearl and Peridot Haircomb
Peridotite xenoliths in basalt
Quartz (var. smoky quartz)
Quartz Gems
Siderite
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