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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Calcite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Fluorites
Harriman
Jadeite Pendant
Kyanite schist
Marble with wollastonite
Midnight Dreamscape
Millerite
Millerite with hematite and quartz
Missouri River Sapphires
Montana Sapphires
Mystery Diamond
Peekskill
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Spinel peridotite
Thompson Diamonds
Veszelyite
Winston Adamantine Pearl
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