Where it forms, where it's found
- Type locality
- Taylor Pit
- Madoc
- Centre Hastings Municipality
- Hastings County
- Ontario
- Canada
44.5022°, -77.4664°
5recorded occurrences
Safety & handling
Physical
Optical
- Pleochroism
- Strong
White to gray, intensity slightly less than boulangerite
- Anisotropism
- Strong
Crystallography
- Cell parameters
- a = 27.2(2) Å · b = 34.1(2) Å · c = 4.06(5) Å
- Ratio a:b:c
- 1 : 1.254 : 0.149
- Z
- 4
- Comment
Space group Pbam or Pba2. Strong pseudoperiod with c' = 0.5c.
Chemical composition
Synonyms
- IMA1966-015
- Madociet
- Madocite (of Jambor)
In other languages
- French
- madocite
- German
- IMA 1966-015 · Madocit
- Spanish
- madocite
- Italian
- madocite
Classification
Strunz
10th ed.2.LB.30
- 2Sulfides and SulfosaltsClass
- 2.LUnclassified SulfosaltsDivision
- 2.LBWith essential PbGroup
- 2.LB.30MadociteSpecies
Dana
8th ed.03.05.07.01
- 03SulfosaltsClass
- 03.052.5 < ø < 3Type
- 03.05.07— unnamed intermediate level —Group
- 03.05.07.01MadociteSpecies
CIM
—5.6.14
- 5Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)Class
- 5.6Sulpharsenites etc. of Pb aloneGroup
- 5.6.14MadociteSpecies
Literature, links & citation
Citations
- 1967Jambor, John Leslie (1967) New lead sulfantimonides from Madoc, Ontario. Part 1. The Canadian Mineralogist, 9 (1) 7-24
- 1968Mandarino, J.A.; Kato, A. (1968) New Mineral Names. American Mineralogist, 53 (7-8). 1421-1427
- 1968Jambor, John Leslie (1968) New lead sulfantimonides from Madoc, Ontario. Part 3--Syntheses, paragenesis, origin. The Canadian Mineralogist, 9 (4). 505-521
- 1973Walia, D. S., Chang, L. L. Y. (1973) Investigations in the systems PbS-Sb2S3-As2S3 and PbS-Bi2S3-As2S3. The Canadian Mineralogist, 12 (2) 113-119
- 1982Jambor, John L.; Laflamme, J. H. G.; Walker, D. A. (1982) A Re-examination of the Madoc Sulfosalts, in Ontario. The Mineralogical Record, 13 (2). 93-100
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Madocite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/madocite-2517},
note = {Accessed 2026-05-11}
}