They are found in many localities around the world, but many people have never seen them. This size is excellent for jewelry such as earrings and wire-wrap. Commonly called Zeolites, these specimens are a group of related hydrous tectosilicate minerals, popular among collectors. Zeolites commonly occur in cavities in basic igneous rocks, especially vesicular basalt. Commonly called Zeolites, these specimens are a group of related hydrous tectosilicate minerals, popular among collectors.
Zeolites commonly occur in cavities in basic igneous rocks, especially vesicular basalt.
A must for every collection. We received a limited quantity of these fine specimens. Be sure to get yours before they are gone. I am a librarian and an 'amateur' rock collector. Your site was fun, interesting, tempting, and informative.