Gold

Gold is a raw material found in basalt, shale and sandstone. Its in-game description notes that it is highly conductive.

It can be found in the following biomes:
 * Mushroom Forest
 * Grassy Plateaus
 * Jelly Shroom Caves
 * Koosh Zone
 * Underwater Islands
 * Dunes
 * Deep Grand Reef
 * Grand Reef