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Smithsonian National Museum of Natural History
GeoGallery
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Arkose
Augen gneiss block
Basaltic cinder
Beryl
Beryl (var. aquamarine)
Beryl (var. green beryl)
Beryl (var. heliodor)
Bununu
Bustee
Cavansite with stilbite and calcite
Cordierite (var. iolite)
Cordierite (var. iolite)
Corundum (var. ruby)
Corundum (var. ruby)
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Freedom Diamond
Hemimorphite
Hope Diamond
Johnstown
Manganoan calcite
Mesolite
Microcline (var. amazonite)
Migmatite
Muscovite schist
Nautilus Tourmaline Pendant
Nigerian tourmalines
Pyritic slate
Quartz (var. agate)
Quartz (var. dendritic agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Shergotty
Pagination
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