And is it bad to use dyed crystals in your practice? Crystals, in their natural state, are often breathtaking, but sometimes they don’t have the intense colors that catch your eye. That’s ...

The magic of crystal formation had already been done by natural processes; all that was needed was a little slicing and dicing. As it turns out, though, quartz is so immensely useful for a ...

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

While high-quality quartz crystals can be very clear, Mathis notes, “I’m looking at it and they’re too clear.” Small fractures and imperfections pock most natural quartz crystals.

A new international study has confirmed that a mysterious feature found in dinosaur eggshells—called secondary eggshell units ...

Geologist Juan Manuel García-Ruiz calls it "the Sistine Chapel of crystals," but Superman could call it home. A sort of south-of-the-border Fortress of Solitude, Mexico's Cueva de los Cristales ...

who manufactured mind-altering methamphetamine crystals for criminal ends, the others make natural crystals for far more wholesome purposes: from vision and camouflage to regulating heat and ...