During the 16th and 17th Century a pigment entitled "mummy brown" was popular among pre-raphaelite painters. One of the main ingredients were remains of Egyptian mummies, mixed with pitch and myrrh During the early 20th Century, production decreased due to exhaustion of the supply of available mummies. Today, the pigment is a mix of kaolin, quartz, goethite and hematite. It varies from yellow to red and dark violet.