Minium (pigment) 300 B.C. It was known in the Han Dynasty (200 BC-200 AD) under the name "cinnabar of lead" ("ch'ien tan"), The process of manufacturing it was described in a Chinese manuscript of the 5th century. Minium was widely used for Persian miniature painting and Indian miniature painting. Minium (pigment) Minium, also known as red lead, is a bright orange red pigment that was widely used in the Middle Ages for the decoration of manuscripts and for painting. It was made by roasting white lead pigment in the air; the white lead would gradually turn yellow, then into an orange lead
Cockatiel colour genetics essentially gone. It is only covered up by more grey pigment. There are a tremendous number of colour varieties (combined mutations), including ADMpied Cinnamon, genuine albino, Opaline Cinnamon, Creamino, White-faced Cinnamon, White-faced Opaline. The genuine albino cockatiel is the exact genetic equivalent of any other albino mutation in other parrot species such as the budgerigar, the celestial a.k.a. Pacific parrotlet, the Indian-ringnecked subspecies of rose-ringed parakeet, the splendid a.k.a. scarlet-chested parrot and the white-eye-ringed lovebird species. Throughout all parrot and parakeet species, the genuine albino mutation is always produced by the visual combination of the genuine blue mutation, otherwise known