import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
-import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.Icon;
-import net.minecraft.world.World;
import pcc.chemicraft.base.ChemiCraftBase;
import pcc.chemicraft.base.ChemiCraftBaseAPI;
import pcc.chemicraft.core.ChemiCraftCore;