HeartStone

Heartstone has many unique abilities that have all been utilized over the years. It was originally placed by the Volcaryn astrals to act as a conductor for energy between humans and runes. This allowed people to cast spells that were supposed to assist them in creating the Volcaryn's ideal world.

It also gives off a large amount of radiation. It can cause mutations astonishingly quickly, sometimes resulting in extreme bodily adjustments in one animal. For this reason, those that spend a significant amount of time around it are prone to cancer. One of the most prominent uses of Heartstone radiation throughout history was the facilitated mutation of people in the Society.

Finally, its rigidity is unstable. Its shape and flexibility have been known to change dramatically with relatively small temperature and energy adjustments. This has been utilized to make many different inventions. Needless to say, the Society has the most experience with reshaping Heartstone due to their extensive mining of it.

Heartstone can be found under the ground all over the earth. There is significantly more of it in the Centrum than the Society due to (once again) their mining of it.