It occurs in association with orpiment, arsenolite, calcite and barite. Pigments were also made in ancient times from a mineral known as orpiment. It is said to have produced copper, iron and orpiment. Arsenic, as realgar () and orpiment (), was known in ancient times. A small paintbox with orpiment pigment was found in the tomb of King Tutankhamun. The Five Minerals are realgar, cinnabar, orpiment, alum, and laminar malachite []. With 46% arsenic content, arsenopyrite, along with orpiment, is a principal ore of arsenic. Illustrative is the roasting of orpiment, a typical arsenic sulfide ore. By 1914, export of orpiment fetched an average of 20,000 Kabuli kabulis. Tintoretto also used the rare arsenic sulfide pigments realgar and orpiment. Arsenic sulfides (orpiment, realgar) and oxides have been known and used since ancient times. Orpiment is a common monoclinic arsenic sulfide mineral. Orpiment is a deep-colored, orange-yellow arsenic sulfide mineral with formula . Orpiment is found in volcanic environments, often together with other arsenic sulfides, mainly realgar.