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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Oppenheimer Diamond
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Pearson Diamond
Portuguese Diamond
Purple agate
Pyrite with calcite
Pyrope Hair Comb
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhodochrosite
Ruby and Diamond Brooch
Scorodite
Shepard Diamond
Sinuous Gypsum
Spindle Bomb
Sugilite
Tlacotepec
Topaz
Unusual Gems
Victoria-Transvaal Diamond
Wulfenite
Wulfenite
Pagination
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