Winemaker Gustav Heineman discovered the largest geode, filled with celestine crystals and measuring over 10 meters across, on South Bass Island, Ohio, in 1897. The geode formed during the Silurian period, around 430 million years ago, when glaciers melted at the end of the last ice age. Lake Erie water seeped into anhydrite pockets, dissolving them and creating caves.
Related Posts
ETH Zurich Study Links Climate Change to Earth’s Rotational Shift
At a Glance Researchers at ETH Zurich have conducted groundbreaking research into the causes behind long-term changes in…
New Research Reveals Discrepancies in Carbon Flux Estimates from Tropical Forests
At a Glance Tropical forests play a crucial role in Earth’s climate system by absorbing atmospheric carbon dioxide.…
The Earth Is Losing So Much Ice That The Crust Beneath It Is Warping
It is unfortunate that one of the most ubiquitous issues of our time is human-induced climate change. The…
Our moon has been slowly drifting away from Earth over the past 2.5 billion years
The moon is currently moving 3.8 cm away from the Earth every year. (Shutterstock) Joshua Davies, Université du…