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Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
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GeoGallery
Almandine schist
Arkose
Augen gneiss block
Baryte
Basaltic cinder
Calcite
Fluorite
Fluorite
Fluorites
Freedom Diamond
Hematite
Hemimorphite
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nephrite Bowl
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Zircon (var. cyrtolite)
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