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
Bellsbank
Blue Heart Diamond
Conchita Montana Sapphire Butterfly
Corundum (var. sapphire)
Cullinan Blue Diamond Necklace
Diamond in kimberlite
Eclogite
Eclogite
Fluorites
Freedom Diamond
Garnet peridotite
Garnet peridotite
Hematite with quartz
Hemimorphite
Johnstown
Kimberley Diamond
Kyanite schist
Limestone with chert
Manganoan calcite
Marquise Diamond Ring
Microcline (var. amazonite)
Migmatite
Missouri River Sapphires
Montana Sapphires
Opal
Opal bone
Oppenheimer Diamond
Pearson Diamond
Portuguese Diamond
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. agate)
Quartz (var. amethyst)
Pagination
Current page
1
Page
2
Next page
Next
Last page
Last
Home
Smithsonian Institution
Terms of Use
Privacy Policy
Host an Event
Jobs
Press
Blog
Contact Us