coal: rare in forest biomes
aluminium: minecraft plains
iron: terralith gravel desert
gravel: terralith gravel beach
copper: terralith forested highlands
gold: minecraft badlands
redstone: terralith volcanic peaks
emerald: terralith windswept spires
lapis: terralith glacial chasm
sand: minecraft beach
stone: terralith highlands
clay: terralith orchid swamp