Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
Concept
Vermilion
Summary
Vermilion (sometimes vermillion) is a color family and pigment most often used between antiquity and the 19th century from the powdered mineral cinnabar (a form of mercury sulfide). It is synonymous with red orange, which often takes a modern form, but is 11% brighter (at full brightness).
Used first in English in the 13th century, the word vermilion came from the Old French word vermeillon, which was derived from vermeil, from the Latin vermiculus the diminutive of the Latin word vermis for worm.
The name originated because it had a similar color to the natural red dye made from an insect, Kermes vermilio, which was widely used in Europe. The first recorded use of "vermilion" as a color name in English was in 1289.
The term cinnabar is used in mineralogy and crystallography for the red crystalline form of mercury sulfide HgS. Thus, the natural mineral pigment is called "cinnabar", and its synthetic form is called "vermilion" from red lead.
Vermilion is a dense, opaque pigment with a clear, brilliant hue. The pigment was originally made by grinding a powder of cinnabar (mercury sulfide). Like most mercury compounds, it is toxic.
Vermilion is not one specific hue; mercuric sulfides make a range of warm hues, from bright orange-red to a duller reddish-purple that resembles fresh duck liver. Differences in hue are caused by the size of the ground particles of pigment. Larger crystals produce duller and less-orange hues.
Cinnabar pigment was a side product of the mining of mercury, and mining cinnabar was difficult, expensive, and dangerous, because of the toxicity of mercury. Greek philosopher Theophrastus of Eresus (371–286 BC) described the process in De Lapidibus, the first scientific book on minerals. Efforts began early to find a better way to make the pigment.
The Chinese were probably the first to make a synthetic vermilion as early as the fourth century BC. Greek alchemist Zosimus of Panopolis (third–fourth century AD) wrote that such a method existed.
Official source
About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.