Sinopia is a reddish-brown ochre

Ochre

Ochre is the term for both a golden-yellow or light yellow brown color and for a form of earth pigment which produces the color. The pigment can also be used to create a reddish tint known as "red ochre". The more rarely used terms "purple ochre" and "brown ochre" also exist for variant hues...

-like earth color pigment

Pigment

A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which a material emits light.Many materials selectively absorb...

 used in traditional oil painting

Oil painting

Oil painting is the process of painting with pigments that are bound with a medium of drying oil—especially in early modern Europe, linseed oil. Often an oil such as linseed was boiled with a resin such as pine resin or even frankincense; these were called 'varnishes' and were prized for their body...

. It is used for the cartoon

Cartoon

A cartoon is a form of two-dimensional illustrated visual art. While the specific definition has changed over time, modern usage refers to a typically non-realistic or semi-realistic drawing or painting intended for satire, caricature, or humor, or to the artistic style of such works...

 or underpainting for a fresco

Fresco

Fresco is any of several related mural painting types, executed on plaster on walls or ceilings. The word fresco comes from the Greek word affresca which derives from the Latin word for "fresh". Frescoes first developed in the ancient world and continued to be popular through the Renaissance...

; indeed, the term is also synecdochically used to refer to underpainting done in sinopia. It is composed of iron oxide

Iron oxide

Iron oxides are chemical compounds composed of iron and oxygen. All together, there are sixteen known iron oxides and oxyhydroxides.Iron oxides and oxide-hydroxides are widespread in nature, play an important role in many geological and biological processes, and are widely utilized by humans, e.g.,...

s, from a kind of clay or quartz called sinople

Sinople

Sinople was a term for a kind of red earth used as a pigment in antiquity.It can refer to:*sinople, also sinoper, a term for "red", and later "green" in heraldry, see Sinople...

.

Sinopia was written about by Cennino Cennini in "Il libro dell'arte" in the 15th century and described thus: "a natural color known as sinoper, or porphyry, is red; and this color is lean and dry in character. It stands working up well; for the more it is worked up, the finer it becomes. It is good for use on panel or anconas, or on the wall, in fresco

Fresco

Fresco is any of several related mural painting types, executed on plaster on walls or ceilings. The word fresco comes from the Greek word affresca which derives from the Latin word for "fresh". Frescoes first developed in the ancient world and continued to be popular through the Renaissance...

 or in secco." Cennini follows this discussion with a look at a special kind of sinopia used in Florence for painting flesh colors.

Literature

• Fabrizio F.V. Arrigoni: "Sinopie architettura ex artramentis". Lindlar 2011. Die Neue Sachlichkeit, ISBN 978-3942139-07-6 (Deutsch/Italienisch); ISBN 978-3-942139-08-3 (English/Italian).

External links

• The Museo delle Sinopie in Pisa, Italy