Heptasartorite Explained

Heptasartorite
Category:Sulfosalt
Formula:Tl7Pb22As55S108
Imasymbol:Hsat[1]
System:Monoclinic
Class:Prismatic (2/m)
(same H-M symbol)
Symmetry:P21/c
Unit Cell:a = 37.62, b = 7.88,
c = 20.07 [Å], β = 101.93° (approximated)

Heptasartorite is a very rare mineral[2] with formula Tl7Pb22As55S108. It belongs to sartorite homologous series.[3] It is related to other recently approved minerals of the series: enneasartorite and hendekasartorite.[4] [5] All three minerals come from a quarry in Lengenbach, Switzerland, which is famous of thallium minerals.[6] Chemically similar minerals include edenharterite and hutchinsonite.[7] [8]

Notes and References

  1. Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
  2. Web site: Heptasartorite: Heptasartorite mineral information and data . Mindat.org . 2016-03-04.
  3. Topa, D., Stroeger, B., Makovicky, E., Berlepsch, P., and Stanley, C., 2015. Heptasartorite, IMA 2015-073. CNMNC Newsletter No. 28, December 2015, 1861; Mineralogical Magazine 79, 1859–1864
  4. Web site: Enneasartorite: Enneasartorite mineral information and data . Mindat.org . 2016-03-10.
  5. Web site: Hendekasartorite: Hendekasartorite mineral information and data . Mindat.org . 2016-03-10.
  6. Web site: Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland - Mindat.org . Mindat.org . 2016-03-10.
  7. Web site: Edenharterite: Edenharterite mineral information and data . Mindat.org . 2016-03-10.
  8. Web site: Hutchinsonite: Hutchinsonite mineral information and data . Mindat.org . 2016-03-10.