Opal, Boulder As close-to-nature talismans, Boulder Opals carry not only warm Earth energies, but also the illuminating energy of Fire. They assist practical people in developing their spiritual sides, and help spiritually minded people succeed in the everyday world. Australia Boulder Opal Weight: 44.565 ct Size: 33,65x17,99x9,41mm Color: Play of Color Treatment: None Country of Origin: Australia The disclaimer about the healing properties as previously given : It is believed that certain gemstones and minerals have beneficial health and spiritual properties. We und Catawiki cannot guarantee or be held liable for these suggested attributes which have no scientific evidence and cannot be considered a substitute for traditional medical treatment.