Clear quartz, also called rock crystal, is known as a master healer and a stone of great power. Crystal healers know this crystal is the most versatile healing stone and may be used to facilitate many different kinds of healing, including reducing burn blisters, alleviating pain and reducing fever. Quartz treats stomach, heart and bowel issues. Healers place the stone on the part of the body or chakra needing the healing. Quartz amplifies the abilities of other stones and may be substituted for any kind of gem you don't have.