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Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
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Arkose
Augen gneiss block
Ballinoo
Basaltic cinder
Bencubbin
Black Opal Ring
Crocoite with coronadite
Dark Jubilee Opal
Hemimorphite
Henbury
Johnstown
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Mount Padbury
Mundrabilla
Murchison
Murchison meteorite
Opal
Opal
Opal
Opal Peacock Brooch
Opal vertebra
Pyromorphite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Tiffany Opal Necklace
Unusual Gems
Yowah Opal Nut
Zircon (var. cyrtolite)
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