| The cheaper alternative of blue verditer was used in the larger and less intense blue areas like the sky. |
| Authorities state that these may be formed from bright Prussian blue or verditer glazed over with Prussian blue or of smalt. |
| In the 18th century the newly invented pigment Prussian blue offered an alternative to blue verditer. |
| The synthetic pigment, called green verditer, tends to have regularly sized particles with rounded edges. |
| The case is the same with blue verditer, a preparation made from oxide of copper and lime. |
| The tail-feathers are dark olive mixed with verditer green on the upper surface and changing to dull olive-brown. |
