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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Ensisheim
Garnetiferous schist
Granite block
Juvinas
Kyanite schist
Missouri River Sapphires
Montana Sapphires
Nakhla
Orgueil meteorite
Pegmatite
Peridot gemstones
Pyromorphite
Quartz (var. agate)
Quartz (var. agate)
Quartz on siderite
Rock Creek Sapphires
Staurolite
Veszelyite
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