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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Hologem Fire Opal Pendant
Logan Sapphire
Maharani Cat's Eye
Mimetite
Moonstone
Moonstone Carving
Muscovite schist
Nautilus Tourmaline Pendant
Nigerian tourmalines
Nuevo Mercurio
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
Purple agate
Pyrite with calcite
Pyritic slate
Pyrope
Pyrope (var. rhodolite)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. amethyst)
Rosser Reeves Star Ruby
Scorodite
Sinuous Gypsum
Spessartine
Spindle Bomb
Spinel
Spinels
Star of Bombay
Star of Katandru
Star Sapphire Necklace
Tlacotepec
Topaz
Unusual Gems
Pagination
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