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
Baryte
Calcite
Calcite
Fluorite
Fluorite with calcite and chalcopyrite
Fluorites
Labradorite Sunstone
Limestone with chert
Marble with wollastonite
Millerite
Millerite with hematite and quartz
Opal
Opal bone
Oregon Sunstones
Peekskill
Quartz (var. agate)
Quartz (var. amethyst)
Quinn Canyon
Roebling Opal
Sandstone
Sunstones
Under the Sea Sunstone Carving
Willamette
Home
Smithsonian Institution
Terms of Use
Privacy Policy
Host an Event
Jobs
Press
Blog
Contact Us