cinnabar


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cinnabar

(sĭn`əbär), mineral, the sulfide of mercury, HgS. Deep red in color, it is used as a pigment (see vermilionvermilion,
vivid red pigment of durable quality. It is a chemical compound of mercury and sulfur and is known as red sulfide of mercury; it was formerly obtained by grinding pure cinnabar but is now commonly prepared synthetically.
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), but principally it is a source of the metal mercury. It is mined in Spain, Italy, and in the United States in California. The mercury is obtained from it by roasting, the sulfur combining with oxygen and passing off as sulfur dioxide.

Cinnabar

 

a mineral of the sulfide group. Chemical composition, HgS; contains 86.2 percent Hg. Cinnabar crystallizes in the trigonal system, forming rhombohedral crystals and fine granular or powdery masses. Red in color, it sometimes exhibits bluish-gray iridescence. Cinnabar is transparent in thin pieces and has a bright adamantine luster. It has a hardness of 2–2.5 on the mineralogical scale and a density of 8,090–8,200 kg/m3. Cinnabar is the most abundant mineral of mercury and is formed in hydrothermal deposits near the surface together with quartz, calcite, barite, antimonite, pyrite, and marcasite, less often with realgar and native gold.

Cinnabar deposits in the USSR are located in the Ukraine (Nikitovka), in Kirghizia (Khaidarken, Chauvai), in the Altai Mountains (Aktash, Chagan-Uzun), and elsewhere. Abroad it is found in Spain (Almadén), Yugoslavia (Alvala), Italy (Idria), and the USA (New Almaden, Calif.). Natural cinnabar serves as a primary raw material in the production of mercury; it is also used in the manufacture of paints, chiefly pigments (watercolors and oils). The ancient Egyptians were the first to use cinnabar in artwork.

G. P. BARSANOV

cinnabar

[′sin·ə‚bär]
(mineralogy)
HgS A vermilion-red mineral that crystallizes in the hexagonal system, although crystals are rare, and commonly occurs in fine, granular, massive form; the only important ore of mercury. Also known as cinnabarite; vermilion.

cinnabar

1. a bright red or brownish-red mineral form of mercuric sulphide (mercury(II) sulphide), found close to areas of volcanic activity and hot springs. It is the main commercial source of mercury. Formula: HgS. Crystal structure: hexagonal
2. the red form of mercuric sulphide (mercury(II) sulphide), esp when used as a pigment
3. a bright red to reddish-orange; vermilion
4. a large red-and-black European moth, Callimorpha jacobaeae: family Arctiidae (tiger moths, etc.)
References in periodicals archive ?
Chinese cinnabar lacquer lobed vases and covers with gilt copper mounts, the bodies carved with figures and pavilions.
Cinnabar transformed and decomposed at temperatures greater than 350oC and produced a sulphur rich locally reducing atmosphere.
The Cinnabar acquisition included a tank room, upstairs living quarters, three 1,000-square-foot cut-and-cover caves, 55 acres with 12 acres planted in vineyards and a separate house.
OBJECTIVES: We used archival, primary, and secondary sources to develop the first estimate of mercury emissions from cinnabar refining in Huancavelica and to revise previous estimates of emissions from silver refining in Potosi during the colonial period (1564-1810).
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The pigments, they found, were bone white, lead white, cerussite, quartz, cinnabar, malachite, charcoal black, copper salts, Chinese purple and azurite.
Cinnabar Court is the newest phase of speculative development on the park by Commercial Development Projects.
They have been recorded by baritone Donnie Ray Albert with the composer at the piano (CD Tearless; Cinnabar Records, 2003).
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There will also be an import ban in some mercury compounds (such as cinnabar ore and calomel).
Part eight of this 12-part saga, The Palace of the Cinnabar Phoenix, was performed on a lake in Haliburton Forest.
The result is a list of scientific names for dyes and minerals that culminates in "cinnabar," only to then unfold into a mythological account of the origin of cinnabar as the blood of dragons mixed with that of elephants: