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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Opal replacing wood
Oregon Sunstones
Pearl and Peridot Haircomb
Peridot gemstones
Peridot in Basalt
Prehnite
Pyromorphite
Pyrophyllite
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. landscape agate)
Quartz (var. smoky quartz) with microcline
Quartz Gems
Quartz Pendant
Rhodochrosite
Rock Creek Sapphires
Roebling Opal
Smithsonite
Smithsonite
Smithsonites
Southern Charm Pearl Earrings
Sphalerite
Spodumene (var. kunzite)
Spurrite
Star quartz
Sunstones
Topaz Gems
Topaz Pendant
Pagination
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