Lechnerite

Where it forms, where it's found

Type locality: Sant'Olga tunnel
Monte Arsiccio Mine
Sant'Anna di Stazzema
Stazzema
Lucca Province
Tuscany
Italy
43.9667°, 10.2833°

1recorded occurrences

Source · OpenStreetMap

Safety & handling

Crystallography

Crystal system: Triclinic
Space group: #2
Cell parameters: a = 8.1516(9) Å · b = 25.545(3) Å · c = 28.899(3) Å
Cell angles: α = 74.665(8) ° · β = 85.665(8) ° · γ = 80.538(9) °
Ratio a:b:c: 1 : 3.134 : 3.545

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
51SbAntimony Antimony 58 121.760 7062.080
36.15%
82PbLead Lead 33 207.200 6837.600
35.00%
16SSulfur Sulfur 128 32.060 4103.680
21.00%
47AgSilver Silver 10 107.868 1078.680
5.52%
29CuCopper Copper 4 63.546 254.184
1.30%
80HgMercury Mercury 1 200.592 200.592
1.03%
Total 19536.816 100.00%
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
51SbAntimony	Antimony	58	121.760	7062.080	36.15%
82PbLead	Lead	33	207.200	6837.600	35.00%
16SSulfur	Sulfur	128	32.060	4103.680	21.00%
47AgSilver	Silver	10	107.868	1078.680	5.52%
29CuCopper	Copper	4	63.546	254.184	1.30%
80HgMercury	Mercury	1	200.592	200.592	1.03%
	Total	19536.816	100.00%

Synonyms

IMA2024-075
Lechneriet

In other languages

German: IMA 2024-075 · Lechnerit

Classification

Strunz

10th ed.

2.JB

2Sulfides and SulfosaltsClass
2.JSulfosalts of PbS archetypeDivision
2.JBGalena derivatives, with PbGroup
2.JBLechneriteSpecies

Literature, links & citation

Citations

2025Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2025) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 84. European Journal of Mineralogy, 37 (2). 249-255 doi:10.5194/ejm-37-249-2025 DOI: 10.5194/ejm-37-249-2025

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Lechnerite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/lechnerite-471938},
  note      = {Accessed 2026-05-11}
}