Crystal Rations - Final Fantasy XVI Database

In-game Description

Shards of crystal small enough to be held in the hand, which allow those who are not born Bearers to cast magicks. The nations of the Twins see such shards mined from the Mothercrystals and distributed to the populace, so that every man and woman of good character—Bearers, criminals, and other undesirables not included—might enjoy the gift of magic. It is common for people to keep them about their persons in a protective case.