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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Hematite with quartz
Hydroxylherderite
Ibitira eucrite
Imperial Topaz
Jolie Citrine Necklace
Kimberley Diamond
Kyanite schist
Lawsonite
Limestone
Magnetite
Marquise Diamond Ring
Merwinite
Metaconglomerate
Milarite with chlorite
Napoleon Diamond Necklace
Nautilus Tourmaline Pendant
Nephrite Bowl
Nigerian tourmalines
Opal
Oppenheimer Diamond
Orthoclase (var. adularia)
Paraiba Tourmaline
Paraiba Tourmaline
Paraiba Tourmaline
Paraiba Tourmaline Ring
Pearson Diamond
Portuguese Diamond
Post Diamond Tiara
Pyrophyllite
Pyroxmangite
Quartz
Quartz
Quartz (var. amethyst geode)
Quartz (var. amethyst geode)
Quartz (var. amethyst)
Quartz (var. amethyst)
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