Plumosite

Where it forms, where it's found

18recorded occurrences

Source · OpenStreetMap

Safety & handling

Physical

Lustre: metallic
Colour: Grey

Optical

Luminescence: none

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
82PbLead Lead 2 207.200 414.400
50.65%
51SbAntimony Antimony 2 121.760 243.520
29.76%
16SSulfur Sulfur 5 32.060 160.300
19.59%
Total 818.220 100.00%
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	2	207.200	414.400	50.65%
51SbAntimony	Antimony	2	121.760	243.520	29.76%
16SSulfur	Sulfur	5	32.060	160.300	19.59%
	Total	818.220	100.00%

Synonyms

Feather Ore
Federerz

In other languages

German: Plumosit
Italian: Plumosite

Classification

Strunz

10th ed.

2.00

2Sulfides and SulfosaltsClass
2.0— unnamed intermediate level —Division
2.00— unnamed intermediate level —Group
2.00PlumositeSpecies

Literature, links & citation

Citations

1907Spencer, L. J. (1907) Note on ‘Feather-ore’ : identity of ‘Domingite’ (=‘Warrenite’) with Jamesonite. Mineralogical Magazine and Journal of the Mineralogical Society, 14 (66) 207-210 doi:10.1180/minmag.1907.014.66.04 DOI: 10.1180/minmag.1907.014.66.04
1997Cook, N. J. & Damian, G. S. (1997): New data on “plumosite” and other sulphosalt minerals from the Herja hydrothermal vein deposit, Baia Mare district, Rumania. Geologica Carpathica, 48, 387-399. [http://www.geo.edu.ro/sgr/mod/downloads/PDF/Cook-GeoCarp-1997.pdf]

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Plumosite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/plumosite-4837},
  note      = {Accessed 2026-05-11}
}