Selenium-bearing Metacinnabar

Where it forms, where it's found

9recorded occurrences

Source · OpenStreetMap

Safety & handling

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
80HgMercury Mercury 1 200.592 200.592
64.37%
34SeSelenium Selenium 1 78.971 78.971
25.34%
16SSulfur Sulfur 1 32.060 32.060
10.29%
Total 311.623 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
80HgMercury	Mercury	1	200.592	200.592	64.37%
34SeSelenium	Selenium	1	78.971	78.971	25.34%
16SSulfur	Sulfur	1	32.060	32.060	10.29%
	Total	311.623	100.00%

Synonyms

Onofrin
Onofrite
Onofrite (of Haidinger)
Onotrite
Selenian Metacinnabar

Literature, links & citation

Citations

2023Wang, Xiao, Liu, Jiajun, Carranza, Emmanuel John M., Zhai, Degao, Zhao, Qingqing, Weng, Guoming, Zhang, Bin (2023) Characteristics and Formation Conditions of Se-Bearing Metacinnabar in the Wanshan Mercury Ore Field, Eastern Guizhou. Minerals, 13 (2) 173 doi:10.3390/min13020173 DOI: 10.3390/min13020173

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Selenium-bearing Metacinnabar — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/selenium-bearing-metacinnabar-11365},
  note      = {Accessed 2026-05-11}
}