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Smithsonian National Museum of Natural History
GeoGallery
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Agate
Anatase
Apatite with microcline
Azurite
Beryl
Beryl
Beryl ( var. aquamarine)
Beryl with schorl and albite
Bicolor Elbaite
Bulls Eye Agate
Calcite
Calcite
Cassiterite
Chrysoberyl
Cranberry Crown
Elbaite
Elbaite with cookeite
Euclase
Galena with chalcopyrite, sphalerite, and others
Gypsum
Gypsum
Gypsum
Hemimorphite
Mimetite
Opal in matrix
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Paraiba Tourmaline
Perovskite
Platinum nugget
Purple agate
Pyrite with calcite
Pyrrhotite
Quartz
Quartz (var. agate)
Quartz (var. amethyst geode)
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