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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Imperial Topaz
Jolie Citrine Necklace
Kimberley Diamond
Marquise Diamond Ring
Mesolite
Mimetite
Napoleon Diamond Necklace
Nuevo Mercurio
Opal
Opal (var. hyalite)
Opal in matrix
Opals
Oppenheimer Diamond
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Paraiba Tourmaline
Paraiba Tourmaline
Paraiba Tourmaline
Paraiba Tourmaline Ring
Pearson Diamond
Portuguese Diamond
Post Diamond Tiara
Purple agate
Pyrite with calcite
Pyroxmangite
Quartz
Quartz
Quartz (var. agate)
Quartz (var. amethyst geode)
Quartz (var. amethyst geode)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz (var. citrine)
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