Cincinnati Mineral Society
Cincinnati · Ohio · United States
Get in touch with the club
Cincinnati Mineral Society handles membership directly. Reach out with the details below to ask about joining, meetings, and field trips.
Annual show
GeoFair — May 16-17, 2026, Butler County Fairground Event Center, Hamilton, OH
About Cincinnati Mineral Society
Organized in 1935 by Ohioan amateur mineralogists and geologists, the Cincinnati Mineral Society is an all-volunteer nonprofit that promotes mineral collecting and helps teach earth sciences and natural history in and around Cincinnati, serving southwest Ohio, Kentucky, and Indiana. The society is a member of both the American Mineralogical Societies and the Midwest Federation of Mineralogical and Geological Societies. Most meetings feature a speaker delivering an illustrated lecture, and the club hosts GeoFair, a three-day gem, mineral, and fossil show, each year.
Collecting spots near Cincinnati Mineral Society
More clubs in Ohio
- Akron Gem and Mineral Club — Akron
- Buckeye Chapter — Bellville
- Ohio Valley Gem and Mineral Society, Inc. — Belpre
- Mid-Ohio Mineral & Fossil Club — Bucyrus
- Greater Cincinnati Lapidary & Faceting Society — Cincinnati
- See all clubs in Ohio →
Are you an officer of Cincinnati Mineral Society? Claim this page — free.
Information out of date? Email us with the correction.