IC2 mod have all blocks same name, but differs meta data.
With forge i can just read it from oredict, how can i get it with sponge?
I can not remember the casting for sponge to forge when it come to location. However you can convert the sponge location to BlockPos by creating a new instance of blockpos. After that you have the “forge” edition of the block
Sponge implements the ore dictionary via GameDictionary.