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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Albite (var. moonstone)
Amazonite
Apophyllite with prehnite
Bismuthinite
Calcite in betekhtinite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Creedite with pyrite
Dolerite
Kermesite with senarmontite and dolomite
Kyanite after andalusite
Kyanite schist
Magombedze
Missouri River Sapphires
Montana Sapphires
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Stalagmite
Staunton
Titanite
Veszelyite
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