Lonchidite

Where it forms, where it's found

7recorded occurrences

Source · OpenStreetMap

Safety & handling

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
33AsArsenic Arsenic 2 74.922 149.844
55.54%
16SSulfur Sulfur 2 32.060 64.120
23.76%
26FeIron Iron 1 55.845 55.845
20.70%
Total 269.809 100.00%
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	2	74.922	149.844	55.54%
16SSulfur	Sulfur	2	32.060	64.120	23.76%
26FeIron	Iron	1	55.845	55.845	20.70%
	Total	269.809	100.00%

Synonyms

Arsenian Marcasite
Cyrosite
Kausimkies
Kyrosit
Kyrosita
Kyrosite
Lonchandit
Lonchandita
Lonchandite
Lonchidit
Lonchidita
Metalonchidit
Metalonchidita
Metalonchidite

Literature, links & citation

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Lonchidite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/lonchidite-2429},
  note      = {Accessed 2026-05-11}
}