Fiber Stone

Fiber stone is a highly blast resistant block that's also used as a material to make axes, pickaxes and shovels. It can survive a point blank explosion of TNT.

Crafting
Fiberstone is crafted with a coal block surrounded by 8 Stone:



Uses
Along with building explosion-proof structures, fiber stone can be used to create axes, pickaxes and shovels. Read more on Fiberstone Tools.