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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]
The dragon blood tree has an upturned, densely packed crown. This evergreen species is named after its dark red resin, which is known as "dragon's blood". Unlike most monocot plants, Dracaena displays secondary growth, D. cinnabari even has growth zones resembling tree rings found in dicot tree species.
red cinnabar (α-HgS, trigonal, hP6, P3221) is the form in which mercury is most commonly found in nature. Cinnabar has rhombohedral crystal system. Crystals of red are optically active. This is caused by the Hg-S helices in the structure. [5] black metacinnabar (β-HgS) is less common in nature and adopts the zinc blende crystal structure (T 2 ...
The North Mills River in North Carolina. North Carolina's geography is usually divided into three biomes: Coastal, Piedmont, and the Appalachian Mountains.. North Carolina is the most ecologically unique state in the southeast because its borders contain sub-tropical, temperate, and boreal habitats.
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]
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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
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