Either one of two pigments (called blue verditer, and green verditer) which are made by treating copper nitrate with calcium carbonate (in the form of lime, whiting, chalk, etc.) They consist of hydrated copper carbonates analogous to the minerals azurite and malachite.
Verditer blue, a pale greenish blue color, like that of the pigment verditer.
... green; spurious wing bluish green; external webs of the principal primaries dull blue, narrowly edged with greenish yellow; the remaining primaries olive-green, edged with greenish yellow; under wing-coverts verditer-green; breast and abdomen olive-grey, tinged with vinous; thighs rosy red; upper tail-coverts olive, tinged with blue; two centre tail-feathers bluish olive-green; the two next on each side olive-green on their outer webs and dark brown ... — Explorations in Australia, The Journals of John McDouall Stuart • John McDouall Stuart Read full book for free!