Found in the deepest depths of aquatic environments, this coral has long been dead; the organic matter replaced with silica rich solutions, crystalizing it. Formed by great pressure, it is a very strong material, with a variety of applications in many of the best components.
Coral Shards can be used for major refueling while out in the field.
Can be found at:Edit
Aquatic Planet: 170-250 depth
Look for blocks without grass on top of it. Corals are only found in the top row of a landmass. The coral itself shows onscreen as something resembling a pink plant and needs to be collected by drilling out the rock below it.