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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Amphibole-rock
Beryl
Beryl (var. heliodor)
Bununu
Calcite
Chabazite
Corundum (var. sapphire)
Eclogite
Elbaite
Elbaite
Elbaite
Elbaite (var. rubellite)
Fluorites
Garnetiferous schist
Granite block
Marble with wollastonite
Millerite
Millerite with hematite and quartz
Monazite
Nautilus Tourmaline Pendant
Nigerian tourmalines
Opal
Opal
Opal replacing wood
Peekskill
Pegmatite
Peridot gemstones
Prehnite
Pyromorphite
Silver
Silver
Sunstone
Unusual Gems
Unusual Gems
Zagami
Zincite
Pagination
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