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Smithsonian National Museum of Natural History
GeoGallery
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GeoGallery
Arkose
Augen gneiss block
Ballinoo
Basalt drill core
Basalt drill core
Basalt drill core
Basaltic cinder
Bencubbin
Black Opal Ring
Crocoite with coronadite
Dark Jubilee Opal
Freedom Diamond
Hemimorphite
Henbury
Johnstown
Manganoan calcite
Microcline (var. amazonite)
Migmatite
Mount Padbury
Mundrabilla
Murchison
Murchison meteorite
New Concord
Olivine-basalt drill core
Opal
Opal
Opal
Opal Peacock Brooch
Opal vertebra
Peridotite xenoliths in basalt
Pyromorphite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Tiffany Opal Necklace
Unusual Gems
Pagination
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