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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Lawsonite
Limestone
Limestone with chert
Lost City meteorite
MacAlpine Hills 88105
Manganoan calcite
Marble with wollastonite
Marcasite
Merwinite
Mesolite
Metaconglomerate
Microcline (var. amazonite)
Migmatite
Miller Range 03346
Millerite
Millerite
Millerite with hematite and quartz
Missouri River Sapphires
Montana Sapphires
Moonstone
Muscovite schist
Nephrite Bowl
New Concord
Norton County
Olivine-basalt drill core
Olivine-gabbro
Opal
Opal
Opal
Opal bone
Opal replacing wood
Oregon Sunstones
Paragould
PAT 91501,5
PAT 91501,50
Pearl and Peridot Haircomb
Pagination
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