Geuerite

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 = 8.521(2) Å · b = 8.005(2) Å · c = 25.031(5) Å
Cell angles: β = 100.56(3) °
Ratio a:b:c: 1 : 0.939 : 2.938

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
33AsArsenic Arsenic 22 74.922 1648.284
34.39%
16SSulfur Sulfur 40 32.060 1282.400
26.76%
82PbLead Lead 4 207.200 828.800
17.29%
81TlThallium Thallium 4 204.380 817.520
17.06%
47AgSilver Silver 2 107.868 215.736
4.50%
Total 4792.740 100.00%
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
33AsArsenic	Arsenic	22	74.922	1648.284	34.39%
16SSulfur	Sulfur	40	32.060	1282.400	26.76%
82PbLead	Lead	4	207.200	828.800	17.29%
81TlThallium	Thallium	4	204.380	817.520	17.06%
47AgSilver	Silver	2	107.868	215.736	4.50%
	Total	4792.740	100.00%

Synonyms

Geueriet

In other languages

German: Geuerit

Classification

Strunz

10th ed.

2.HD.55

2Sulfides and SulfosaltsClass
2.HSulfosalts of SnS archetypeDivision
2.HDWith TlGroup
2.HD.55GeueriteSpecies

Group, growth & confusion

28 members

Literature, links & citation

Citations

2024Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2024) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 77. European Journal of Mineralogy, 36 (1). 165-172 doi:10.5194/ejm-36-165-2024DOI: 10.5194/ejm-36-165-2024

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Geuerite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/geuerite-470996},
  note      = {Accessed 2026-05-11}
}