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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Albite (var. moonstone)
Amazonite
Apophyllite with prehnite
Arkose
Augen gneiss block
Basaltic cinder
Dolerite
Fluorite with calcite
Fluorites
Hemimorphite
Johnstown
Kyanite after andalusite
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Pyrite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. smoky quartz) with microcline
Quartz Gems
Rhodochrosite
Sphalerite
Stalagmite
Staunton
Unusual Gems
Zircon (var. cyrtolite)
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