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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Kyanite with biotite
Labradorite Sunstone
Lafayette
Lafayette
Lawsonite
Limestone
Limestone with chert
Lion of Merelani Tsavorite
Lost City meteorite
Mackay Emerald Necklace
Manganoan calcite
Marble with wollastonite
Marcasite
Marquise Diamond Ring
Maximilian Emerald
Merwinite
Metaconglomerate
Microcline (var. amazonite)
Midnight Dreamscape
Migmatite
Millerite
Millerite
Millerite with hematite and quartz
Missouri River Sapphires
Mogul Emerald Necklace
Montana Sapphires
Moonstone
Moonstone
Muscovite schist
Mystery Diamond
Nephrite Bowl
New Concord
Norton County
Olivine-basalt drill core
Olivine-gabbro
Opal
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