Orange Ochre, called also Spanish ochre, etc. is a very bright yellow ochre burnt, by which operation it acquires warmth, colour, transparency, and depth. In colour it is moderately bright, forms good flesh tints with white, dries and works well both in water and oil, and is very durable and eligible pigment. It may be used in enamel-painting, and has all the properties of its original ochre in other respects. See Yellow Ochre.

2. Orange De Mars

Orange De Mars is an artificial iron ochre, similar to the above, of which we formerly prepared a variety brighter, richer, and more transparent than the above, and in other respects of the same character; but require to be employed cautiously with colours affected by iron, being more chemically active than native ochres.

3. Damonico

Damonico, or Monicon, is also an iron ochre, being a compound of Terra di Sienna and Roman ochre burnt, and having all their qualities. It is rather more russet in hue than the above, has considerable transparency, is rich and durable in colour, and affords good flesh tints.

4. Burnt Sienna Earth

Burnt Sienna Earth is, as its name expresses, the Terra di Sienna burnt, and is of an orange russet colour. What has been said of orange ochre and damonico may be repeated of burnt Sienna earth. It is richer in colour, deeper, and more transparent, and works better than raw Sienna earth; but in other respects has all the properties of its parent colour, and is permanent and eligible wherever it may be useful.

5. Light Red And Venetian Red

Light Red and Venetian Red, before treated of, are also to be considered as impure, but durable orange colours; and several artificial preparations of iron afford excellent colours of this class.