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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Gold leaf
Gold nugget
Gold on quartz
Goose Lake
Granite
Granite block
Granite block
Gypsum
Harriman
Havey Tourmaline
Hemimorphite
Homestead
Hydroxylherderite
Ibitira eucrite
Imperial Topaz
Johnstown
Jolie Citrine Necklace
Juvinas
Kyanite after andalusite
Kyanite schist
Kyanite with biotite
Labradorite Sunstone
Lafayette
Lafayette
Lawsonite
Limestone
Limestone with chert
Lost City meteorite
Manganoan calcite
Marble with wollastonite
Marcasite
Merwinite
Metaconglomerate
Microcline (var. amazonite)
Migmatite
Millerite
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