You can make it from sandstone in SAG mill with little chance. In nether saltpeter spawn only in small ore form, but it's enough for making industrial TNT for industrial mining! Hail to explosion!Any ideas where can i find niter/saltpeter? The only thing i can find are small saltper ores in the nether and i cant see the normal ores in any vein description.
Really, it is really good way to mining ore veins without quarry.