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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Kyanite with biotite
Labradorite (var. rainbow moonstone)
Mimetite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Nuevo Mercurio
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
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
Tlacotepec
Topaz
Unusual Gems
Weston
Wulfenite
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