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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Milarite with chlorite
Oppenheimer Diamond
Orbicular agate
Orthoclase
Orthoclase (var. adularia)
Pearson Diamond
Perovskite
Platinum nugget
Pyrrhotite
Quartz
Quartz (var. amethyst)
Quartz (var. smoky quartz)
Quartz Gems
Quartz with Fluorite
Rhodochrosite
Ruby and Diamond Brooch
Russian beryls
Russian chrysoberyls
Shepard Diamond
Siderite
Sikhote-Alin
Sperrylite
Spessartine
Sugilite
Tiffany Amethyst Necklace
Titanite
Titanite
Topaz Gems
Unusual Gems
Unusual Gems
Unusual Gems
Victoria-Transvaal Diamond
Zircon
Pagination
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