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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Baryte
Basalt drill core
Basalt drill core
Basalt drill core
Bismuthinite
Cafarsite
Calcite
Calcite in betekhtinite
Creedite with pyrite
Fluorite
Fluorite
Fluorite with quartz
Fluorites
Hematite
Kyanite schist
Magnetite
Milarite with chlorite
Monazite
Olivine-basalt drill core
Orthoclase (var. adularia)
Peridot gemstones
Peridotite xenoliths in basalt
Quartz (var. smoky quartz)
Quartz Gems
Siderite
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