Cinnabar covered with bright red powder made from cinnabar. The most popularly known use of cinnabar is in Chinese carved lacquerware, a technique that apparently originated in the Song dynasty. The danger of mercury poisoning may be reduced in ancient lacquerware by entraining the powdered pigment in lacquer, but could still pose an environmental hazard if the pieces were accidentally destroyed. In the modern jewelry industry, the toxic pigment is replaced by a resin-based polymer that approximates the appearance of pigmented lacquer. Two female mummies dated A.D. 1399 to 1475 found in Cerro Esmeralda in Chile in 1976 had clothes colored
Sulphur Bank Mine tin ore. Oxland believed the cinnabar ore at Sulphur Bank had been formed from hot springs. His thesis stated that hot springs brought metals in a dissolved state from igneous rock deep in the earth through a thick block of metamorphised ancient seabed to form cinnabar ore near the surface of the mine. Oxland also believed the cinnabar deposit was continually forming. Becker came to agree with the Oxland thesis. There were a number of mysteries about the Sulphur Bank that Becker attempted to solve. Among them was how sulfur had been delivered to the surface of the mine and