Okay, so I booted this mod up on an existing world, and unfortunately the raw ore blocks won't spawn into the existing blocks, so i had to do some hunting in the files and found the item names for each raw ore!. It was pretty simple and now I can continue this world and play the mod (somewhat) normally! Here's how to do it:

make sure you type "/cheats on" into the chat so that the commands themselves will work

here are the three main ores:

/loot fr.rawzinc (amount)

/loot fr.rawnickel (amount)

/loot fr.sulfurore (amount)


Type any number into where the (amount) is and you'll be able to get however much of that ore you want. If you want to get more of anything else from the mod in the game, the item name will always have "fr." before the actual name of the titem. Hope this helps!