Where is the ancient altar?

Mining can be carried out below the main world 19 layer, and uranium can be obtained after combustion in a furnace. A uranium can be decomposed into 16 runes. First, the altar can be picked down with a pickaxe, and there are runes in the backpack to get wind runes. After the magic level in the upper right corner reaches level 8, the altar can be put back. Similarly, if the backpack has runes, right-click the altar to get the flame runes.

uranium button

The workbench is as follows: uranium blocks, diamonds and uranium blocks thus synthesized the ancient altar.

uranium button