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The third-largest producer of quicksilver in the area was the Study Butte Mine, located five miles east of Terlingua. Cinnabar was discovered here in 1902 and mined from 1905. The property was operated in World War II by the Texas Mercury Co. Cinnabar occurs in ore-bearing fractures or veins within a syenite intrusion.
Cinnabar is the more stable form, and is a structure akin to that of HgO: each Hg center has two short Hg−S bonds (each 2.36 Å), and four longer Hg···S contacts (with 3.10, 3.10, 3.30 and 3.30 Å separations). In addition, HgS is found in a black, non-cinnabar polymorph (metacinnabar) that has the zincblende structure. [5]
Cinnabar is the common bright scarlet to brick-red form of mercury(II) sulfide. Cinnabar may also refer to: Cinnabar, the color of the mineral; Cinnabar, Queensland, a locality in the Gympie Region, Queensland, Australia; Cinnabar moth (Tyria jacobaeae), a brightly coloured arctiid moth; Cinnabar Theater, a theater in Petaluma, California, USA
Genuine vermilion pigment today comes mostly from China; it is a synthetic mercuric sulfide, labeled on paint tubes as PR-106 (Red Pigment 106). The synthetic pigment is of higher quality than vermilion made from ground cinnabar, which has many impurities. The pigment is very toxic, and should be used with great care. [16]
Denver City is a city located in Yoakum County in the far western portion of the U.S. state of Texas, near the New Mexico boundary. It is named for the petroleum company Denver Productions. The population was 4,470 at the 2020 census, [4] down from 4,479 at the 2010 census. The city is located at the intersection of Texas State Highways 214 and 83.
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The St John's Mine is a mineral extraction site approximately three miles north of the city of Vallejo in Solano County, California, United States. The St John's site was used for extraction of cinnabar in the early 1900s. [1] The St. John's Mine is classified as a medium priority mine from the standpoint of environmental oversight. [2]
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