Rainbow Crystal

"A type of "crystallite," within which dwells a mysterious power. This specimen has a higher degree of purity than normal rainbow-colored crystallite, and can even further elevate the user's magical acumen and techniques. Thus, many spend years seeking out superior crystallite specimens such as this one, but given their rarity, most come up empty-handed. The few who are lucky enough to obtain such a large crystallite specimen will inevitably make . an indelible mark on the annals of history."