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
Basalt drill core
Basalt drill core
Basalt drill core
Cafarsite
Chinguetti
Fluorite with quartz
Fluorites
Kyanite schist
Magnetite
Milarite with chlorite
Olivine-basalt drill core
Opal
Opal
Opal replacing wood
Orthoclase (var. adularia)
Peridotite xenoliths in basalt
Pyromorphite
Quartz (var. smoky quartz)
Quartz Gems
Siderite
Home
Smithsonian Institution
Terms of Use
Privacy Policy
Host an Event
Jobs
Press
Blog
Contact Us