Incomsartorite

Tl6Pb144As246S516
IMA status
  • Approved
  • Pending publication
IMA symbol
Isat
IMA approved
2016
Also known as
  • IMA2016-035
  • Incomsartoriet

Where it forms, where it's found

Type locality
Lengenbach Quarry
  1. Fäld
  2. Binn
  3. Goms
  4. Valais
  5. Switzerland

46.3653°, 8.2205°

1recorded occurrences
Source · OpenStreetMap

Safety & handling

Crystallography

Crystal system
Monoclinic
Cell parameters
a = 45.9944(2) Å · b = 7.8793(1) Å · c = 58.6716(8) Å
Cell angles
β = 90.153(1) °
Ratio a:b:c
1 : 0.171 : 1.276
Comment

Incommensurate, approximant monoclinic; space group P21/n.

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
82PbLeadLead144207.20029836.800
45.18%
33AsArsenicArsenic24674.92218430.812
27.91%
16SSulfurSulfur51632.06016542.960
25.05%
81TlThalliumThallium6204.3801226.280
1.86%
Total66036.852100.00%

Mass share = atoms × atomic mass ÷ molar mass × 100

From IMA formula

Synonyms

  • IMA2016-035
  • Incomsartoriet

In other languages

German
IMA 2016-035 · Incomsartorit
Italian
Incomsartorite

Classification

Strunz
10th ed.

2.HC.05e

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

Group, growth & confusion

In the same group
28 members

Literature, links & citation

Citations
  1. 2016Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2016) New minerals and nomenclature modifications approved in 2016, CNMNC Newsletter No. 33. Mineralogical Magazine, 80 (6) 1135-1144 doi:10.1180/minmag.2016.080.085DOI: 10.1180/minmag.2016.080.085
  2. 2022(2022) Incomsartorite. Handbook of Mineralogy. Mineralogical Society of America
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Incomsartorite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/incomsartorite-47989},
  note      = {Accessed 2026-05-11}
}