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Smithsonian National Museum of Natural History
GeoGallery
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Afghanite with calcite
Agate
Bastnäsite with quartz
Calcite
Corundum (var. ruby)
Elbaites
Fluorite
Gypsum
Gypsum
Hemimorphite
Mimetite
Picasso Kunzite Necklace
Pollucite
Pyrite with calcite
Quartz (var. agate)
Sinuous Gypsum
Wulfenite
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