Visit Langsdon Rock and Mineral Collection, Celina, Ohio
Sat, Mar 07
|Mercer County District Library Celina OH
Tour the Langsdon Rock and Mineral Collection, one of the most impressive private-turned-public collections in the Midwest. Located within the Mercer County District Library, this "hidden gem" features over 900 rare specimens from across the globe.
Time & Location
Mar 07, 2026, 9:30 AM – 12:00 PM
Mercer County District Library Celina OH, 303 N Main St, Celina, OH 45822, USA
About the event
Enjoy a tour of the Langsdon Rock and Mineral Collection, one of the most impressive private-turned-public collections in the Midwest. Located within the Mercer County District Library, this "hidden gem" features over 900 rare specimens from across the globe.
You can experience a personalized look at this world-class exhibit, curated by Ron and Ruth Langsdon over decades of dedicated searching.
What to Expect
The Langsdon Collection is housed in 21 custom display cases with specimens accessible for public viewing, including:
Global Rarity: View minerals from late 20th to early 21st century opened mines in India and China, as well as specimens from historic mines that are now permanently closed.
Vibrant Variety: See stunning examples of pyrite, galena, iridescent bornite, raspberry garnet, and a massive, polished piece of jade.