Pietersite is a mineral formula with SiO2. Pietersite inspires the physical body of the wearer by bestowing him energy and strength. It is a stone for healing nervous system as it is useful for invigorating and strengthening the brain and nerves. It alleviates nervous diseases, headache, respiratory issues, stomach pain and light-headedness. Pietersite arouses the pituitary gland, hormone governing metabolism, and the endocrine system. It also stimulates growth, blood pressure, sex, and body temperature. It is also thought to pacify the eye infections, dull vision, and long distance focus. Price is for 8mm*21 beads, 10mm*19 beads and 12mm* 16 beads. Price can we change according to the size of your wrist.