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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Quartz (var. smoky quartz) with microcline
Quartz Gems
Quartz Pendant
Quinn Canyon
Rhodochrosite
Rhodochrosite
Rhyolite
Rhyolite pumice
Rock Creek Sapphires
Roebling Opal
Rose City
Ruby and Diamond Brooch
Sandstone
Sandstone
Scapolite
Shepard Diamond
Smithsonite
Smithsonite
Smithsonites
Southern Charm Pearl Earrings
Sphalerite
Spinel Bracelet
Spinels
Spinels
Spodumene (var. kunzite)
Spurrite
Stalagmite
Star of Asia
Star quartz
Staunton
Staurolite schist
Success meteorite
Sugilite
Sunstones
Topaz Gems
Topaz Pendant
Pagination
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