Petrified Wood - Tumbeled (price is for one large malachite, intuitively chosen).
Brings healing to physical & emotional issues. Helps with past life work. Grounds & helps one to be a spiritual being in the physical world. Helps one to set a steady, maintainable pace.
Every stone does more than is listed here. The best way to choose is to use your intuition. Just because someone says a stone does or doesn't do something, doesn't make it true for you. I encourage you to use them as you feel called.