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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 Wakasugiyama Cinnabar Mine (若杉山辰砂採掘遺跡, Wakasugiyama shinshasaikutsu iseki) is an archaeological site with the traces of a late Yayoi to early Kofun period cinnabar production site, located in the Suii neighborhood of the city of Anan, Tokushima on the island of Shikoku in Japan.
Using this and other spectroscopic methods, it has been determined that the very common red pigment found in these books was created from red lead, or, more dangerously, the highly toxic compound cinnabar. Another variant of this common color was vermillion, created using heated mercury and sulfur.
Centaurea diffusa basal rosette, first year plant. Diffuse knapweed is an annual or biennial plant, generally growing to between 10 and 60 cm in height.It has a highly branched stem and a large taproot, as well as a basal rosette of leaves with smaller leaves alternating on the upright stems.
Cinnabar moths are about 20 mm (0.79 in) long and have a wingspan of 32–42 mm (1.3–1.7 in). Cinnabar moths are day-flying insects with distinctive pinkish-red and black wings. There is little variation in patterning, although on rare occasions the red markings may be replaced with yellow, or the forewing is entirely red with a black border ...
The Jin dynasty Daoist scholar Ge Hong's c. 320 CE Baopuzi (Master Who Embraces Simplicity) is the earliest surviving source of information about zhi excrescences.. Based upon no longer extant texts and illustrations, Chapter 11 (仙藥; Xianyao; "Medicines of Immortality") outlines folklore and knowledge about zhi, and elucidates the wuzhi (五芝; "Five Zhi") classification system.
Hordeum spontaneum, commonly known as wild barley or spontaneous barley, is the wild form of the grass in the family Poaceae that gave rise to the cereal barley (Hordeum vulgare). Domestication is thought to have occurred on two occasions, first about ten thousand years ago in the Fertile Crescent and again later, several thousand kilometres ...
One way to control the spread of this fungus is pruning branches of trees that have cankers. N. cinnabarina is a saprophyte and mainly resides in and on dead tissue, but as the fungus progresses, it invades living tissue and causes further disease. Trimming the areas so that no dead tissue remains is important because this removes the areas ...