The mod add new way to get mese crystals (mainly crystal fragments).
At first you must add gravel block to a bucket with water (it is a craft recepy). Now you only pour the bucket of a "watergravel" on a ground. But it is important to know that water will disappear if you place the watergravel on nonsolid blocks (sand, gravel, dirt).
After a lapse of time you see yellow points on the watergravel texture. You only dig the block and it drops mese a crystal fragment (+ crystal fragment with rarity 2 and another with rarity 4 and mese crystal with rarity 16).
It comes without any warranty, to the extent permitted by applicable law. You can redistribute it and/or modify it under the terms of the Do What The Fuck You Want To Public License, Version 2, as published by Sam Hocevar. See http://sam.zoy.org/wtfpl/COPYING for more details.