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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Nuevo Mercurio
Olivine-basalt drill core
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Peridotite xenoliths in basalt
Phosgenite
Purple agate
Pyrite with calcite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Scorodite
Sinuous Gypsum
Smithsonite
Smithsonites
Spindle Bomb
Sulfur
Tlacotepec
Topaz
Unusual Gems
Unusual Gems
Vigarano
Wulfenite
Wulfenite
Wulfenite
Wulfenite
Wulfenite
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