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 ...

Known as Cueva de los Cristales (Cave of Crystals), this hidden chamber in Mexico holds some of the largest natural crystals ...

The Cave of Crystals is an underground cavern filled with tree-size gypsum crystals, including some of the largest natural crystals ever found. The cave is located around 980 feet (300 meters) deep ...

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 ...

Giant crystals found in Naica min in Chihuahua, Mexico stand up to 36 feet tall and have measured over three feet wide. NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team ...

Some of the Earth's most incredible features lie beneath its surface. Caves often hold fascinating secrets, from the world's largest underwater cave, which is full of human remains, to the Cave of the ...

These huge gypsum crystals in Mexico's Naica caves, some up to 12m long, have been growing for tens of thousands of years -- but scientists have only now discovered what's inside them. "We've ...

You would be forgiven for thinking researchers had discovered Superman's Fortress of Solitude. The gargantuan gypsum crystals in Mexico's Cave of Crystals measure up to 36 feet (the length of a motor ...

Scientifically speaking, the term “crystal” refers to any solid that has an ordered chemical structure. This means that its parts are arranged in a precisely ordered pattern, like bricks in a wall.

New kinds of liquid crystals resemble gypsum or lazulite crystals -- except that they flow like fluids. A team at the University of Colorado Boulder has designed new kinds of liquid crystals that ...