Bone
The source of blood is also, strangely enough, the source of the will, and remembers the life it once embraced.
Originally meant to be a necromancy reagent, Bone is currently a Tailoring resource that is used in the creation of Bone Armor. Just as hides must be processed into leather, characters must use a pair of scissors on bone piles to create the resource, bone.
In addition to bone piles, which come in 10 stone and 15 stone versions, the resource bone can be made from the following: a bone; bone shards; jawbone; pelvis bone; and a spine. Such items are most easily found on the Shadow Wisps that frequent the Champion Spawns in Ilshenar. Giant Serpents often have bone, in addition to Spined Hides, while Tsuki Wolves offer bones as well as normal leather.
It was first seen as a Necromancy reagent in Ultima VIII: Pagan.