All natural stones in our store have been thoroughly tested by me on Razors, Knives, and Tools. I have included a short description with each stones relative hardness and best use. If a stone has any inclusions or toxic lines, it will be stated in that particular stones description, otherwise there are none. Please email me before buying a stone, and I will try and guide you to which stone suits you and your situation the best.
IMPORTANT note for All Sharpening stones, Synthetics or Naturals, Seal all your stones that way you are 100 % sure that they hold a life time !
Use can use any waterproof lacquers or simply glue it to wooden or other bases