BALLY – They form deep in the earth over thousands of years, but today they will be on display in the air above ground. Geodes – hollows in underground rocks that are filled with crystals caused by ...

TUCSON, Ariz.-- Thousands from near and far came out to the Gem and Mineral Showcase’s opening weekend, but there was one geode that was getting more attention than others. Among the rock-solid ...

Alex is a senior associate editor at Discover. Before he joined the Discover team in 2019, he worked as a reporter for the Half Moon Bay Review and as a staff writer for Houston’s Texas Medical Center ...

Boulder, Colo., USA: The geode of Pulpí is an 11-meter hollow ovoid with crystal-paneled walls. It is like those familiar couplets of stone interiors covered with bright crystallites, but so large ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Discovered in 1999 during mining operations in the Mina Rica (the ...

Any geode might make us wonder: What geologic forces form these hollows lined with crystals? But the Pulpí Geode, discovered in an abandoned Spanish mine, takes wonder to a different scale. One of the ...

In 2019, Michal Mael brought a massive geode to the Kino Gem Show. It weighed thousands of pounds and had a heavy door attached — for everyone who has ever dreamed of being encapsulated by amethyst.

This week at the Des Moines County Historical Society, the artifact of interest is an amazing example of a designated state symbol. This item is a large geode, the Iowa state rock, on display at the ...

The Tentative Lists of States Parties are published by the World Heritage Centre at its website and/or in working documents in order to ensure transparency, access to information and to facilitate ...