The Mad Green Crystal is a block added by The Future Mod!. It generates underground in the Overworld from Y levels 12 to 59. Up to 5 Mad Green Crystal veins generate in 1 chunk, and each Mad Green Crystal vein consists of up to 6 Mad Green Crystals, making Mad Green Crystal about as rare as Redstone Ore.
Objects viewed throw a Mad Green Crystal will be tinted green.
