When mining stone with the enchanted pickaxe, there is a small chance it will drop also drop raw copper, raw gold, raw iron, redstone, or an amethyst shard, depending on the height of the stone mined. Cobblestone will still drop when mined, and the Forterra shamir will not work with a Silk Touch pickaxe.
Forterra will only drop 1 resource for per stone broken.
A line graph showing the percent chance of getting a Forterra drop from y values between 0 and 66.
