This is what the entry from the Zecchi site looks like to help in ordering: “ ORPIMENT HUE. Chemical composition: Blend of Coloured Earths. (Series: 7) .” Here is our best guess at the equivalent in Italian. This is from the Italian portion of the site: “ TINTA ORPIMENTO. Composizione chimica: Miscela di terre coloranti. (Gruppo: 7).”