Copper

Copper is a new material that was introduced into the C1.4 update.

Obtaining
Copper can be found in places near the Grass Island, mostly under the 1st Floating Island or within the cave inside the valcano.

Usage
Copper can be used to create coins with Coin Press and craft the Radio Pack. It may have more usages in the future. Out of all three materials that can now be turned into coins, Copper coins have the lowest value. One copper coin is equivalent to 1 coin only.