Iron-bearing Boracite

Where it forms, where it's found

1recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 13 15.999 207.987
37.17%
26FeIron Iron 3 55.845 167.535
29.94%
5BBoron Boron 7 10.810 75.670
13.52%
12MgMagnesium Magnesium 3 24.305 72.915
13.03%
17ClChlorine Chlorine 1 35.450 35.450
6.34%
Total 559.557 100.00%
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	13	15.999	207.987	37.17%
26FeIron	Iron	3	55.845	167.535	29.94%
5BBoron	Boron	7	10.810	75.670	13.52%
12MgMagnesium	Magnesium	3	24.305	72.915	13.03%
17ClChlorine	Chlorine	1	35.450	35.450	6.34%
	Total	559.557	100.00%

Synonyms

Eisenboracit
Eisenstassfurtit
Ferroan Boracite
Huyssenite
Iron-boracite

Literature, links & citation

Citations

1951Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Iron-bearing Boracite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/iron-bearing-boracite-30756},
  note      = {Accessed 2026-05-11}
}