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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Gold nugget
Gold on quartz
Goose Lake
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Hooker Emerald
Lawsonite
Limestone
Mackay Emerald Necklace
Maximilian Emerald
Merwinite
Metaconglomerate
Mimetite
Mogul Emerald Necklace
Nephrite Bowl
Nuevo Mercurio
Olivine-basalt drill core
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Parisite with calcite
Peridotite xenoliths in basalt
Post Emerald Necklace
Purple agate
Pyrite with calcite
Pyrophyllite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhyolite
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