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
Alexandrites
Andradite (var. demantoid)
Andradite (var. demantoid)
Arkose
Augen gneiss block
Basalt bomb
Basalt drill core
Basalt drill core
Basalt drill core
Basaltic cinder
Calcite
Chrome Diopside
Dyscrasite
Galena with chalcopyrite, sphalerite, and others
Hemimorphite
Johnstown
Manganoan calcite
Microcline
Microcline (var. amazonite)
Migmatite
Olivine-basalt drill core
Peridotite xenoliths in basalt
Perovskite
Platinum nugget
Pyrope Hair Comb
Pyrrhotite
Quartz (var. agate)
Quartz (var. smoky quartz) with microcline
Rhodochrosite
Russian beryls
Russian chrysoberyls
Sikhote-Alin
Sperrylite
Tiffany Amethyst Necklace
Topaz Gems
Zircon (var. cyrtolite)
Home
Smithsonian Institution
Terms of Use
Privacy Policy
Host an Event
Jobs
Press
Blog
Contact Us