Ferrimuscovite

Where it forms, where it's found

5recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 12 15.999 191.988
37.64%
26FeIron Iron 2 55.845 111.690
21.90%
14SiSilicon Silicon 3 28.085 84.255
16.52%
13AlAluminium Aluminium 3 26.982 80.946
15.87%
19KPotassium Potassium 1 39.098 39.098
7.67%
1HHydrogen Hydrogen 2 1.008 2.016
0.40%
Total 509.993 100.00%
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
8OOxygen	Oxygen	12	15.999	191.988	37.64%
26FeIron	Iron	2	55.845	111.690	21.90%
14SiSilicon	Silicon	3	28.085	84.255	16.52%
13AlAluminium	Aluminium	3	26.982	80.946	15.87%
19KPotassium	Potassium	1	39.098	39.098	7.67%
1HHydrogen	Hydrogen	2	1.008	2.016	0.40%
	Total	509.993	100.00%

Literature, links & citation

Citations

2009Melka, K. (2009): A scheme for the classification of micaceous minerals. Acta Geodyn. Geomater. 9(1), 69-75.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Ferrimuscovite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/ferrimuscovite-40642},
  note      = {Accessed 2026-05-11}
}