Buynite

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
Cell parameters: a = 7.918(1) Å · b = 25.711(4) Å · c = 8.345(1) Å
Cell angles: β = 90.626(2) °
Ratio a:b:c: 1 : 3.247 : 1.054
Comment: structure determined

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
82PbLead Lead 14 207.200 2900.800
51.24%
16SSulfur Sulfur 40 32.060 1282.400
22.65%
33AsArsenic Arsenic 17 74.922 1273.674
22.50%
81TlThallium Thallium 1 204.380 204.380
3.61%
Total 5661.254 100.00%
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	14	207.200	2900.800	51.24%
16SSulfur	Sulfur	40	32.060	1282.400	22.65%
33AsArsenic	Arsenic	17	74.922	1273.674	22.50%
81TlThallium	Thallium	1	204.380	204.380	3.61%
	Total	5661.254	100.00%

Synonyms

Buyniet

In other languages

German: Buynit · IMA 2023-049

Classification

Strunz

10th ed.

2.HD

2Sulfides and SulfosaltsClass
2.HSulfosalts of SnS archetypeDivision
2.HDWith TlGroup
2.HDBuyniteSpecies

Literature, links & citation

Citations

2023Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2023) Newsletter 75. Mineralogical Magazine, 1-4 doi:10.1180/mgm.2023.76DOI: 10.1180/mgm.2023.76

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Buynite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/buynite-470884},
  note      = {Accessed 2026-05-11}
}