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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Basaltic cinder
Beryl
Beryl (var. aquamarine)
Beryl (var. green beryl)
Beryl (var. heliodor)
Bununu
Bustee
Calcite
Cavansite with stilbite and calcite
Cordierite (var. iolite)
Cordierite (var. iolite)
Corundum (var. sapphire)
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorites
Freedom Diamond
Hemimorphite
Hope Diamond
Hubnerite with quartz
Johnstown
Manganoan calcite
Marble with wollastonite
Mesolite
Microcline (var. amazonite)
Migmatite
Millerite
Millerite with hematite and quartz
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Peekskill
Quartz (var. agate)
Pagination
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