As I've mentioned in my question here I've installed the mod Furnace Mk2. It has pics for its recipes, but the one for the thermal magnifier is not completely clear. It has three black blocks on the bottom row, but I can't figure out what they are. I've tried:
- cobbled deepslate
- deepslate
- deepslate tiles
- deepslate bricks
- blackstone
- polished blackstone
- polished blackstone bricks
- basalt
- smooth basalt
- polished basalt
- black wool
- black terracotta
- black concrete powder
- black concrete
- block of coal
- obsidian
I'm pretty sure from zooming the image that it isn't a cracked or chiseled variant of the above. I've looked at every blackish block in the list at the unofficial wiki. I'm at a loss here.
Again, as mentioned in my earlier post, there is something wrong with recipe releases and it doesn't show the recipe in the book until you've already crafted the thing.
Can some kind soul who's using this mod or just knowledgeable about blocks help me out?