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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Orthoclase
Pentahydroborite
Peridot
Peridot
Peridot
Peridot gemstones
Quartz
Quartz (var. amethyst)
Quartz with Fluorite
Siderite
Spessartine
Stibnite
Titanite
Titanite
Titanite with calcite and adularia
Topaz Gems
Triplite
Unusual Gems
Unusual Gems
Väyrynenite
Zagami
Zircon
Pagination
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