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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Agate
Ahumada
Azurite
Banded iron formation
Basalt
Calcite
Calcite
Calcite
Carbo
EET 92029,0
Fire Opal
Fire Opal
GRO 85201,0
Gypsum
Gypsum
Gypsum
Hemimorphite
Hemimorphite
Hologem Fire Opal Pendant
MacAlpine Hills 88105
Miller Range 03346
Mimetite
Nephrite Perfume Bottle
Nuevo Mercurio
Olivine-gabbro
Opal (var. hyalite)
Opal in matrix
Opals
Orthoclase (var. adularia) with dolomite
Paradamite with pharmacosiderite
PAT 91501,5
PAT 91501,50
Peridot gemstones
Purple agate
Pyrite with calcite
Quartz (var. agate)
Pagination
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