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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Quartz Gems (var. citrine)
Quartz Pendant
Quartz with Chamosite
Quartz with Clinochlore
Quartz with sphalerite inclusions
Quinn Canyon
Rhodochrosite
Rhodochrosite with arsenopyrite
Rhodonite
Rhyolite
Rhyolite pumice
Rock Creek Sapphires
Rock Crystal Quartz Egg
Roebling Opal
Rose City
Rose quartz sphere
Rutile
Sandstone
Sandstone
Smithsonite
Smithsonite
Smithsonites
Southern Charm Pearl Earrings
Spessartine
Sphalerite
Spodumene (var. kunzite)
Spodumene (var. kunzite)
Spodumene (var. kunzite)
Spurrite
Stalagmite
Star quartz
Staunton
Staurolite schist
Success meteorite
Sunstones
Topaz
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