Skip to main content
Smithsonian Institution
Main Menu
Visit
Exhibits
Research
Education
Events
About
Join us
Donate
Search
Search
Close
Smithsonian National Museum of Natural History
GeoGallery
Breadcrumb
Home
GeoGallery
Arkose
Augen gneiss block
Basaltic cinder
Corundum (var. sapphire)
Hemimorphite
Johnstown
Labradorite Sunstone
Limestone with chert
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Opal
Opal bone
Oregon Sunstones
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Quartz (var. smoky quartz) with microcline
Quinn Canyon
Rhodochrosite
Roebling Opal
Sandstone
Sunstones
Under the Sea Sunstone Carving
Willamette
Zircon
Zircon (var. cyrtolite)
Home
Smithsonian Institution
Terms of Use
Privacy Policy
Host an Event
Jobs
Press
Blog
Contact Us