Dekatriasartorite

Where it forms, where it's found

Type locality: Lengenbach Quarry
Fäld
Binn
Goms
Valais
Switzerland
46.3653°, 8.2205°

1recorded occurrences

Source · OpenStreetMap

Safety & handling

Crystallography

Crystal system: Monoclinic
Space group: P21/c
Cell parameters: a = 54.576(5) Å · b = 7.8947(6) Å · c = 20.102(16) Å
Cell angles: β = 78.153(1) °
Ratio a:b:c: 1 : 0.145 : 0.368

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
82PbLead Lead 58 207.200 12017.600
46.17%
33AsArsenic Arsenic 97 74.922 7267.434
27.92%
16SSulfur Sulfur 204 32.060 6540.240
25.13%
81TlThallium Thallium 1 204.380 204.380
0.78%
Total 26029.654 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From IMA formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
82PbLead	Lead	58	207.200	12017.600	46.17%
33AsArsenic	Arsenic	97	74.922	7267.434	27.92%
16SSulfur	Sulfur	204	32.060	6540.240	25.13%
81TlThallium	Thallium	1	204.380	204.380	0.78%
	Total	26029.654	100.00%

Synonyms

Dekatriasartoriet
IMA2017-071

In other languages

German: Dekatriasartorit · IMA 2017-071
Italian: Decatriasartorite

Classification

Strunz

10th ed.

2.HC.05e

2Sulfides and SulfosaltsClass
2.HSulfosalts of SnS archetypeDivision
2.HCWith only PbGroup
2.HC.05eDekatriasartoriteSpecies

Group, growth & confusion

28 members

Literature, links & citation

Citations

2017Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2017) New minerals and nomenclature modifications approved in 2017, CNMNC Newsletter No 40. Mineralogical Magazine, 81 (6) 1577-1581 doi:10.1180/minmag.2017.081.096DOI: 10.1180/minmag.2017.081.096
2022(2022) Dekatriasartorite. Handbook of Mineralogy. Mineralogical Society of America

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Dekatriasartorite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/dekatriasartorite-52580},
  note      = {Accessed 2026-05-11}
}