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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Missouri River Sapphires
Mogul Emerald Necklace
Montana Sapphires
Nephrite Bowl
Opal
Opal
Opal
Opal bone
Opal replacing wood
Oregon Sunstones
Parisite with calcite
Pearl and Peridot Haircomb
Peridot gemstones
Peridot in Basalt
Post Emerald Necklace
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
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