Stone of protection. It reduces moodiness, nervousness and spasms, reduces the desire to argue. On the contrary, it increases the appetite for compromises, and that's a good thing. It promotes boundaries and inner peace. It helps the body get rid of poisons, strengthens the lungs, stabilizes the heart rhythm. It clears the space where there is negative energy, helps in the initial stage of lung cancer, but only before metastases. ?