You must have CRYSTAL BLOCK and DREAMSTONE BLOCK to make RUBY BLOCK. You can find this item in misc blocks category. Using growspray would be madness, better get a time machine. Want 25 experinece points? Brake RUBY BLOCK block or tree. There is no data about durability. There is no data about seedratio. There is no data about gemratio. Currently we do not yet have knowledge about the blockratio of RUBY BLOCK.