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Smithsonian National Museum of Natural History
GeoGallery
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Abee
Acasta Gneiss
Actinolite
Afghanite with calcite
Albite (var. moonstone)
Almandine schist
Amazonite
Amphibole-rock
Andesite
Apophyllite with prehnite
Aragonite (var. flos ferri)
Arkose
Attaway Ametrine
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 calcite
Basalt drill core
Basalt drill core
Basalt drill core
Basalt lava
Basaltic cinder
Bastnäsite with quartz
Beryl
Beryl ( var. morganite)
Beryl (var. emerald)
Bismuth
Calcite
Calcite
Calcite
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