Color Green, light Green, and yellow with black stripes. Origin South Africa, Australia, China and United States Healing It helps diagnose diseases, heal kidneys, the bladder, the thymus gland, shoulders, chests, and lungs, treat gout and blood disorders, and stabilize malignant diseases. Interesting Facts Prehnite was named after the Dutch colonel Hendrik von Prehn, who was one of the early discoverers of the mineral in South Africa.