Lamb Shank with Mastic Gum

We have this spice called mastic gum or tears of Chios, which is the resine of the gum tree. Originally it is from Chios, a Greek island we call "Sakız Adası" (Gum Island). The island has the story of trees crying tears of this gum for this or that mythologic or religious reason. The spice has a very unique taste and it is not very well known other than by Greeks, Turks and a few other eastern mediterraneans. In Turkey we mainly use it for desserts. But I have been thinking we should ...