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