When a True Monster is cut it does not bleed, it oozes. With a biological makeup nonsensical, its strange organic form is fueled indefinitely by the lesser Minor Stone in its upper body. This does not mean True Monsters lack hunger or thirst. Born of and driven by Graskoroth’s hate and rage they often have insatiable appetites, driving them to hunt down and consume whatever they can find. The more sentient the better.
Historical Discovery
Early in the Times of Sorrow the rumors of a common weak point flitted across the continent, but it took centuries before the discovery of this strange power source became common knowledge. But once it was discovered these stones could be found in great quantity and replace many of the uses of the much scarcer Minor and God Stones their value spiked quickly. This discovery matched the timing of early governing bodies, and while some attempts at metallic and paper currencies were made, they could never match the intrinsic value held by each and every stone ripped from a True Monsters chest.
The terms Chips and slivers were thrown around early due to the Monster Stones appearing like and functionally being smaller, weaker versions of the Minor and God-like varieties.