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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Peekskill
Pegmatite
Peridot gemstones
Peridot in Basalt
Peridotite xenolith
Peridotite xenolith in basalt
Peridotite xenoliths in basalt
Pitts
Plainview
Plantersville
Post Emerald Necklace
Prehnite
Proustite cross (NMNH 12829-00)
Pyritic slate
Pyromorphite
Pyrope (var. rhodolite)
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
Quinn Canyon
Rhodochrosite
Rhyolite
Rhyolite pumice
Rock Creek Sapphires
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