III-Grade bistot, also known as monoclinic bistot, is a variant of bistot with a slightly different crystal structure. It is highly sought-after, as it gives a 10% higher yield than its straightforward counterpart. Bistot is a very valuable ore as it holds large portions of Zydrine and Pyerite. It also contains a decent amount of Mexallon. This material was compressed using an older process that compressed batches of raw materials into units using a set input quantity. Newer compression technology uses a more flexible one-to-one unit compression system.