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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Agate
Ahumada
Azurite
Basalt
Beryl (var. aquamarine)
Calcite
Calcite
Calcite
Carbo
Fire Opal
Fire Opal
Fluorite
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Mimetite
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Purple agate
Pyrite with calcite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Schneider Tanzanite Ring
Scorodite
Sinuous Gypsum
Spindle Bomb
Spinels
Tlacotepec
Pagination
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