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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Aegirine with orthoclase
Arkose
Augen gneiss block
Basaltic cinder
Carlton iron meteorite
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Corundum (var. sapphire)
Fort Stockton
Freedom Diamond
Hemimorphite
Johnstown
Kyanite schist
Labradorite (var. rainbow moonstone)
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Missouri River Sapphires
Montana Sapphires
Plainview
Plantersville
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Rock Creek Sapphires
Topaz Gems
Topaz Pendant
Veszelyite
Zircon (var. cyrtolite)
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