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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Aragonite (var. flos ferri)
Azurite in malachite
Azurite with malachite
Azurite with malachite
Azurite with malachite
Basalt lava
Calcite
Calcite
Calcite
Calcite
Canyon Diablo
Canyon Diablo
Canyon Diablo
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Cuprite on copper
Fire agate
Fluorites
Kyanite schist
Limestone with chert
Marble with wollastonite
Millerite
Millerite with hematite and quartz
Missouri River Sapphires
Montana Sapphires
Opal
Opal bone
Peekskill
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
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