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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Maharani Cat's Eye
Moonstone
Moonstone Carving
Nautilus Tourmaline Pendant
Nigerian tourmalines
Orbicular agate
Orthoclase
Paravauxite
Phosphophyllite
Pyrope
Pyrope (var. rhodolite)
Quartz
Quartz (var. amethyst)
Quartz (var. amethyst)
Quartz (var. ametrine)
Quartz Gems
Quartz with Fluorite
Rosser Reeves Star Ruby
Rutile
Southwest Sunset
Spessartine
Spinel
Spinels
Star of Bombay
Star of Katandru
Star Sapphire Necklace
Titanite
Titanite
Topaz Gems
Unusual Gems
Unusual Gems
Vivianite with pyrite
Zagami
Zircon
Zircons
Pagination
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