The 1,000-Mile Great Lakes Adventures

Showing posts with label biggest geode. Show all posts
Showing posts with label biggest geode. Show all posts

Sunday, September 15, 2013

The World's Largest Celestite Geode

I've taken a hammer to quite a few geodes in my life, but I had never seen anything like this underground geode on South Bass Island in Lake Erie. 

Discovered in 1897 when islanders were trying to dig a well, this geode is filled with massive celestite crystals comprised of Strontium Sulfate (SrSO4).

This geode has room for over a dozen people 

Surrounded by crystals!

The geode/cave is privately owned 
and is called the
Crystal Cave.

Crystals up close -- each crystal has 14 faces


This is the largest single crystal in the cave -- it weighs nearly 200 pounds


These are the largest known celestite crystals in the world.