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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Carlton iron meteorite
Fluorite with calcite
Fluorites
Fort Stockton
Galena with pyrite and marcasite
Garnetiferous schist
Granite block
Pegmatite
Plainview
Plantersville
Pyrite
Sphalerite
Topaz Gems
Topaz Pendant
Unusual Gems
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