Manganese-bearing Ankerite

Where it forms, where it's found

6recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 6 15.999 95.994
32.52%
26FeIron Iron 1 55.845 55.845
18.92%
25MnManganese Manganese 1 54.938 54.938
18.61%
20CaCalcium Calcium 1 40.078 40.078
13.58%
12MgMagnesium Magnesium 1 24.305 24.305
8.23%
6CCarbon Carbon 2 12.011 24.022
8.14%
Total 295.182 100.00%
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	6	15.999	95.994	32.52%
26FeIron	Iron	1	55.845	55.845	18.92%
25MnManganese	Manganese	1	54.938	54.938	18.61%
20CaCalcium	Calcium	1	40.078	40.078	13.58%
12MgMagnesium	Magnesium	1	24.305	24.305	8.23%
6CCarbon	Carbon	2	12.011	24.022	8.14%
	Total	295.182	100.00%

Synonyms

Manganoan Ankerite
Manganoankerite

Literature, links & citation

Citations

1962Peterson, N.P. (1962), Geology and ore deposits of the Globe-Miami district, AZ, USGS PP 342

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Manganese-bearing Ankerite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/manganese-bearing-ankerite-26593},
  note      = {Accessed 2026-05-11}
}