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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Gypsum
Hematite with quartz
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
Jadeite
Jadeitite
Kimberley Diamond
Marquise Diamond Ring
Mimetite
Moonstone
Nautilus Tourmaline Pendant
Nephrite Bowl
Nigerian tourmalines
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Oppenheimer Diamond
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Pearson Diamond
Peridot gemstones
Petalite
Portuguese Diamond
Poudretteite
Purple agate
Pyrite with calcite
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Rhodochrosite
Ruby and Diamond Brooch
Scapolite
Scorodite
Shepard Diamond
Pagination
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