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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Mimetite
Mystery Diamond
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Oppenheimer Diamond
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Pearson Diamond
Perovskite
Platinum nugget
Portuguese Diamond
Purple agate
Pyrite with calcite
Pyrrhotite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhodochrosite
Ruby and Diamond Brooch
Russian beryls
Russian chrysoberyls
Scorodite
Shepard Diamond
Sikhote-Alin
Sinuous Gypsum
Sperrylite
Spindle Bomb
Spinel peridotite
Sugilite
Thompson Diamonds
Tiffany Amethyst Necklace
Tlacotepec
Topaz
Topaz Gems
Pagination
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