Real geodes are handball-sized, hollow rocks that start out as bubbles in volcanic or sedimentary rock. Only when these inconspicuous round rocks are split in half by a geologist, do we get a chance ...

A rock/geode faces off against a 60,000 psi waterjet cutter in this thrilling challenge. Music by Chris Solita. #Waterjet #Geode #Challenge Tropical Storm Melissa update as "catastrophic" conditions ...