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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Opal
Opal
Opal Peacock Brooch
Opal vertebra
Orgueil meteorite
Paravauxite
Peridot gemstones
Petalite
Phosphophyllite
Poudretteite
Pyromorphite
Pyromorphite
Quartz (var. ametrine)
Quartz Gems
Quartz on siderite
Scapolite
Southwest Sunset
Spinel Bracelet
Spinels
Star of Asia
Staurolite
Tiffany Opal Necklace
Unusual Gems
Vivianite with pyrite
Yowah Opal Nut
Zagami
Pagination
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