Cinnabar

Cinnabar is a mineral. It is the main ore of mercury and is made up of the chemical mercuric sulphide (HgS).

Cinnabar
Cinnabar

Cinnabar is a mineral. It is the main ore of mercury and is made up of the chemical mercuric sulphide (HgS).

Cinnabar exists in two crystal forms. Red cinnabar is used for the pigment vermilion. It is poisonous, and may go black with age. The other crystal form is black, and does not react chemically to anything except strong acids. Cinnabar has a Mohs hardness of 2–2.5.

Cinnabar has been mined since the Neolithic age.[1]

References

  1. ↑ Martín-Gil, J.; Martín-Gil, F. J.; Delibes-de-Castro, G.; Zapatero-Magdaleno, P.; Sarabia-Herrero, F. J. (1995). "The first known use of Vermillion". Experientia. 51 (8): 759–761. Bibcode:1995Expea..51..759M. doi:10.1007/BF01922425. ISSN 0014-4754. PMID 7649232. S2CID 21900879.{{cite journal}}: CS1 maint: multiple names: authors list (link)


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