Minecraft destroying block texture

In MineCraft, when you hit a block, it will show a texture that you are breaking it. How is this do-able in unity?

Fixed the problem, never knew I could add multiple materials with textures to a mesh.

If only one texture should be used (preferable if having to create multiple version of each texture for different damage levels is to be avoided), then a crack decal texture can be applid to Unity’s Standard shader in the detail albedo and/or detail normal slot.