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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Gold on quartz
Goose Lake
Gypsum
Gypsum
Gypsum
Hematite
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Lawsonite
Limestone
Merwinite
Metaconglomerate
Mimetite
Nephrite Bowl
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Plainview
Plantersville
Purple agate
Pyrite with calcite
Pyrophyllite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhyolite
Rhyolite pumice
Scorodite
Sinuous Gypsum
Spindle Bomb
Spodumene (var. kunzite)
Spurrite
Pagination
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