Hi everyone, i feel its a bit annoying when u are trying to get a lot of cobblestone and u must take diamond, redstone etc... so what i suggest is that if u want to activate the minerals u must put some block. I mean for example: putting a carbon,redstone,iron,gold,diamond near the generator it would activate the minerals, and depending the cuantity of these blocks u would get more chance of getting these minerals. I do this suggestion because right now im starting and i want mostly cobblestone. Sorry if my english is not so correct