Knowledge
Ruddy Manganese Nodule
Description
A rare mineral that exists in the bottom of the ocean. The old sediments permeated with coralline algae shine brilliantly. It is hard enough to be used as building material, but it is as beautiful as a gem.
How to obtain
Can be obtained through [Dialogue] after completing all Ravinia's Ship Upgrade Logs.
She appears to be giving out knowledge for meeting with the people who helped to write Ravinia's Ship Upgrade Log.