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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
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Paravauxite
Phosphophyllite
Purple agate
Pyrite with calcite
Pyrope
Pyrope (var. rhodolite)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Rosser Reeves Star Ruby
Scorodite
Sinuous Gypsum
Southwest Sunset
Spindle Bomb
Spinel
Spinels
Star of Bombay
Star of Katandru
Star Sapphire Necklace
Tlacotepec
Topaz
Unusual Gems
Vivianite with pyrite
Wulfenite
Wulfenite
Zircons
Pagination
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