Blocks of stone with cement holding them together is what the great dam was made of. But when the cement gives way, water starts to leak out, endangering the rest of the stone blocks that make up the dam, which could cause the stones to be washed out because of water pressure. Luckily, Aquaman saves the dam by replacing the washed out stone.
Types of stone
- ↑ As seen in Too Hot to Handle.
- ↑ As seen in The Ultra Beam.
- ↑ As seen in The Menace of the White Dwarf.