Chromviskontite

Where it forms, where it's found

Type locality: Western paleo-fumarole field
Mountain 1004
Tolbachik Volcanic field
Milkovsky District
Kamchatka Krai
Russia
55.6718°, 160.2311°

1recorded occurrences

Source · OpenStreetMap

Safety & handling

Crystallography

Crystal system: Orthorhombic
Space group: #34
Cell parameters: a = 20.597(1) Å · b = 7.3463(3) Å · c = 6.5187(3) Å
Ratio a:b:c: 1 : 0.357 : 0.316

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
82PbLead Lead 5 207.200 1036.000
59.54%
8OOxygen Oxygen 21 15.999 335.979
19.31%
24CrChromium Chromium 3 51.996 155.988
8.96%
29CuCopper Copper 2 63.546 127.092
7.30%
34SeSelenium Selenium 1 78.971 78.971
4.54%
1HHydrogen Hydrogen 6 1.008 6.048
0.35%
Total 1740.078 100.00%
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
82PbLead	Lead	5	207.200	1036.000	59.54%
8OOxygen	Oxygen	21	15.999	335.979	19.31%
24CrChromium	Chromium	3	51.996	155.988	8.96%
29CuCopper	Copper	2	63.546	127.092	7.30%
34SeSelenium	Selenium	1	78.971	78.971	4.54%
1HHydrogen	Hydrogen	6	1.008	6.048	0.35%
	Total	1740.078	100.00%

Synonyms

Chromviskontiet

In other languages

German: Chromviskontit

Classification

Strunz

10th ed.

7.BC

7SulfatesClass
7.BSulfates (selenates, etc.) with additional anions, without H₂ODivision
7.BCWith medium-sized and large cationsGroup
7.BCChromviskontiteSpecies

Literature, links & citation

Citations

—Pekov, I. V., Britvin, S. N., Agakhanov, A. A., Yapaskurt, V. O., Strel'nikov, M. V., Turchkova, A. G., and Kupchinenko, A. N.: Chromviskontite, IMA 2024-019, in: CNMNC Newsletter 80, Eur. J. Mineral., 36, https://doi.org/10.5194/ejm-36-599-2024, 2024.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Chromviskontite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/chromviskontite-471239},
  note      = {Accessed 2026-05-11}
}