Magnesium-bearing Schorl

Where it forms, where it's found

3recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 31 15.999 495.969
44.04%
14SiSilicon Silicon 6 28.085 168.510
14.96%
26FeIron Iron 3 55.845 167.535
14.88%
13AlAluminium Aluminium 6 26.982 161.892
14.37%
12MgMagnesium Magnesium 3 24.305 72.915
6.47%
5BBoron Boron 3 10.810 32.430
2.88%
11NaSodium Sodium 1 22.990 22.990
2.04%
1HHydrogen Hydrogen 4 1.008 4.032
0.36%
Total 1126.273 100.00%
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	31	15.999	495.969	44.04%
14SiSilicon	Silicon	6	28.085	168.510	14.96%
26FeIron	Iron	3	55.845	167.535	14.88%
13AlAluminium	Aluminium	6	26.982	161.892	14.37%
12MgMagnesium	Magnesium	3	24.305	72.915	6.47%
5BBoron	Boron	3	10.810	32.430	2.88%
11NaSodium	Sodium	1	22.990	22.990	2.04%
1HHydrogen	Hydrogen	4	1.008	4.032	0.36%
	Total	1126.273	100.00%

Synonyms

Magnesian Schorl

Literature, links & citation

Citations

2001Kalt, Angelika; Schreyer, Werner; Ludwig, Thomas; Prowatke, Stefan; Bernhardt, Heinz-Jürgen; Ertl, Andreas (2001) Complete solid solution between magnesian schorl and lithian excess-boron olenite in a pegmatite from the Koralpe (eastern Alps, Austria). European Journal of Mineralogy, 13 (6). 1191-1205 doi:10.1127/0935-1221/2001/0013-1191DOI: 10.1127/0935-1221/2001/0013-1191

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Magnesium-bearing Schorl — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/magnesium-bearing-schorl-29245},
  note      = {Accessed 2026-05-11}
}