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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Murchison
Murchison meteorite
Nuevo Mercurio
Opal
Opal
Opal
Opal (var. hyalite)
Opal in matrix
Opal Peacock Brooch
Opal vertebra
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Purple agate
Pyrite with calcite
Pyromorphite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. dendritic agate)
Scorodite
Shergotty
Sinuous Gypsum
Spindle Bomb
Spinel
Spinel
Tiffany Opal Necklace
Tlacotepec
Topaz
Unusual Gems
Wulfenite
Wulfenite
Yowah Opal Nut
Pagination
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