Fantin tukwane yana nufin gyalen tukwane mai ruwan lemu-ja-jaja mara komai, wanda aka kwatanta da alatun ma'adinai na halitta, ocher da manganese oxide a matsayin abubuwa masu launi, sa'an nan kuma a harba a cikin murhu. A kan gawar orange-ja yana ba da kyakkyawan tsari na ocher ja, baki, fari, da launuka daban-daban, yana samar da tukunyar tukwane tare da babban matakin haɗin kai tsakanin ƙirar da siffar kayan aiki, da samun sakamako na ado da ƙawa.