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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Hologem Fire Opal Pendant
Jeremejevite
Liddicoatite
Liddicoatite slices
Mimetite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Orbicular agate
Orthoclase
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Purple agate
Pyrite with calcite
Quartz
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz with Fluorite
Scorodite
Sinuous Gypsum
Spessartine
Spindle Bomb
Titanite
Titanite
Tlacotepec
Topaz
Topaz Gems
Unusual Gems
Unusual Gems
Wulfenite
Wulfenite
Pagination
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