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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Mackay Emerald Necklace
Maximilian Emerald
Mimetite
Mogul Emerald Necklace
Mount Padbury
Mundrabilla
Murchison
Murchison meteorite
Nautilus Tourmaline Pendant
Nigerian tourmalines
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
Parisite with calcite
Post Emerald Necklace
Purple agate
Pyrite with calcite
Pyromorphite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Scorodite
Sinuous Gypsum
Sokol Emerald Necklace
Spindle Bomb
Staurolite
Tiffany Opal Necklace
Tlacotepec
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