"The pebbles I take are very small ... all over the world and it was used as ballast" for the coal industry. "The stone was dropped off before they picked up the coal... and in the 70s there ...

Last month, I had the opportunity to test out an aluminum-oxide-based Sharp Pebble 1000/6000 Dual Grit Sharpening Stone. For an affordable set, it was incredibly well-made and included a bamboo ...