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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Banded iron formation
Chabazite
Fluorite
Garnetiferous schist
Granite block
Lafayette
Lafayette
Marcasite
Olivine-gabbro
Pearl and Peridot Haircomb
Pegmatite
Prehnite
Quartz (var. agate)
Unusual Gems
Unusual Gems
Zincite
Zincite
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