Editing Orange (colour) (section)

===Pigments and dyes===
<gallery mode="packed" heights="150px">
File:Orpiment mineral.jpg|A sample of [[orpiment]] from an arsenic mine in [[southern Russia]]. Orpiment has been used to make orange pigment since ancient times in ancient Egypt, Europe and China. Romans used the mineral for trade.
File:Realgar09.jpg|[[Realgar]], an arsenic sulfide mineral 1.5-2.5 Mohs hardness, is highly toxic. It was used since ancient times until the 19th century to make red-orange pigment, as a poison, and a medicine.
File:Crocoite from the Dundas extended mine, Dundas, Tasmania, Australia.jpg|A sample of [[crocoite]] crystals from [[Dundas, Tasmania|Dundas]] extended mine in [[Tasmania]]. Discovered in 1797 by the French chemist [[Louis Vauquelin]], it was used to make the first synthetic orange pigment, [[chrome orange]], used by [[Pierre-Auguste Renoir]] and other painters.
File:Safran-Weinviertel Niederreiter 2 Gramm 8285.jpg|[[Saffron]], made from the hand-picked [[stigma (botany)|stigma]]s of the ''[[Crocus sativus]]'' flower, is used both as a dye and as a spice.
File:Curcuma longa (Haldi) W IMG 2440.jpg|The [[Curcuma longa]] plant is used to make [[turmeric]], a common and less expensive substitute for saffron as a dye and colour.
File:Curcuma longa roots.jpg|[[Turmeric|Turmeric powder]], first used as a dye, and later as a medicine and spice in [[Indian cuisine]].
</gallery>

Other orange pigments include:
*[[Minium (pigment)|Minium]] and [[massicot]] are bright yellow and orange pigments made since ancient times by heating lead oxide and its variants. Minium was used in the [[Byzantine Empire]] for making the red-orange colour on illuminated manuscripts, while massicot was used by ancient Egyptian scribes and in the Middle Ages. Both substances are toxic, and were replaced in the beginning of the 20th century by chrome orange and cadmium orange.<ref>Isabelle Roelofs and Fabien Petillion, ''La couleur expliquée aux artistes'', pp. 46–47.</ref>
*[[Cadmium orange]] is a synthetic pigment made from [[cadmium sulfide|cadmium sulphide]]. It is a by-product of mining for [[zinc]], but also occurs rarely in nature in the mineral [[greenockite]]. It is usually made by replacing some of the [[sulfur|sulphur]] with [[selenium]], which results in an expensive but deep and lasting colour. [[Selenium]] was discovered in 1817, but the pigment was not made commercially until 1910.<ref>Isabelle Roelofs and Fabien Petillion, ''La couleur expliquée aux artistes'', p. 121.</ref>
*[[Quinacridone]] orange is a synthetic organic pigment first identified in 1896 and manufactured in 1935. It makes a vivid and solid orange.
*[[Diketopyrrolopyrrole dye|Diketopyrrolopyrrole orange]] or DPP orange is a synthetic organic pigment first commercialised in 1986. It is sold under various commercial names, such as translucent orange. It makes an extremely bright and lasting orange, and is widely used to colour plastics and fibres, as well as in paints.<ref>Isabelle Roelofs and Fabien Petillion, ''La couleur expliquée aux artistes'', pp. 66–67</ref>