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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Abee
Acasta Gneiss
Actinolite
Albite (var. moonstone)
Almandine schist
Amazonite
Amphibole-rock
Andalusite with quartz, muscovite, and biotite
Andesite
Apophyllite with prehnite
Aragonite (var. flos ferri)
Arkose
Augen gneiss block
Aurichalcite with hemimorphite
Azurite in malachite
Azurite with malachite
Azurite with malachite
Azurite with malachite
Banded iron formation
Baryte
Baryte
Baryte with berthierite
Baryte with calcite
Basalt drill core
Basalt drill core
Basalt drill core
Basalt lava
Basaltic cinder
Beryl
Beryl ( var. morganite)
Beryl (var. emerald)
Beryl (var. heliodor)
Calcite
Calcite
Calcite
Calcite
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