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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Aragonite (var. flos ferri)
Azurite in malachite
Azurite with malachite
Azurite with malachite
Azurite with malachite
Banded iron formation
Basalt lava
Bismuthinite
Calcite
Calcite
Calcite
Calcite in betekhtinite
Canyon Diablo
Canyon Diablo
Canyon Diablo
Creedite with pyrite
Cuprite on copper
Fire agate
Garnetiferous schist
Granite block
Olivine-gabbro
Pegmatite
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Smithsonite
Smithsonites
Unusual Gems
Wulfenite
Wulfenite
Wulfenite
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