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Smithsonian National Museum of Natural History
GeoGallery
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Actinolite
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Arkose
Augen gneiss block
Aurichalcite with hemimorphite
Basalt bomb
Basaltic cinder
Beryl
Beryl
Beryl (var. heliodor)
Bununu
Chrome Diopside
Columnar dacite
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Freedom Diamond
Galena with chalcopyrite, sphalerite, and others
Hemimorphite
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Perovskite
Platinum nugget
Pyrrhotite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Russian beryls
Pagination
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