Alert Superman! Kryptonite found!
From Times Staff and Wire Reports
Geologists have found a naturally occurring mineral with the same composition as kryptonite, used to weaken Superman, mineralogist Chris Stanley of London’s Natural History Museum reported Tuesday in the journal Geology. Stanley found that the formula for kryptonite, in the movie “Superman II,” matched that of sodium lithium boron silicate hydroxide. But it isn’t green crystal; it’s white, powdery and nonradioactive.