Specularite

Where it forms, where it's found

1,152recorded occurrences

Source · OpenStreetMap

Physical

Transparency: Opaque
Colour: Silvery

Optical

UV response: None.

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
26FeIron Iron 2 55.845 111.690
69.94%
8OOxygen Oxygen 3 15.999 47.997
30.06%
Total 159.687 100.00%
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
26FeIron	Iron	2	55.845	111.690	69.94%
8OOxygen	Oxygen	3	15.999	47.997	30.06%
	Total	159.687	100.00%

Synonyms

Eisenglimmer
Fer speculaire
Gray Hematite
Grey Haematite
Grey Hematite
Iron Mica
Järnglans
Micaceous Iron Ore
Specular Haematite
Specular Hematite
Specular Iron
Specularit
Specularita

Literature, links & citation

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Specularite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/specularite-5574},
  note      = {Accessed 2026-05-11}
}