Some of those bats are big, I admit. NightOwls worked with what they got. None of these were batted by them.
I will use it, but there should be other textures than coal, ie iron ore or bauxite 
I don't know about ore textures, but I am building a tower, smelter, silo and few other similar bats for copper mining operations, using old Outokumpu copper mine as reference. Those lots should work with other mining operations as well.
This is going to take some time though. I just recently started a new job in a construction firm. My body and mind are still trying to get used to 5 a.m. wake up calls, so progress is a bit slow.
- Ilja