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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Baryte with berthierite
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Corundum (var. sapphire)
Cronstedtite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorites
Kyanite schist
Maharaja of Indore Necklace
Marble with wollastonite
Mezö-Madaras
Millerite
Millerite with hematite and quartz
Missouri River Sapphires
Montana Sapphires
Nautilus Tourmaline Pendant
Nigerian tourmalines
Peekskill
Pitts
Quartz (var. agate)
Quartz (var. agate)
Rock Creek Sapphires
Sylvanite
Veszelyite
Zagami
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