FLINT, MI -- After Flint's iconic Rock peeled leaving layers upon layers of paint behind, an age old debate has risen like a phoenix. An age old Flint debate is raging again -- Is the concrete ...

CLEMSON, S.C. — It’s been 50 years since Howard’s Rock debuted at Clemson’s Death Valley, but a paleontologist discovered the rock isn’t what it was thought to be.

Another method to find flint is to attempt to scratch glass with the rock’s edge — glass is a 5.5 on the Mohs scale, so flint should be able to scratch it without much resistance.