Mangan-diaspore

Where it forms, where it's found

2recorded occurrences

Source · OpenStreetMap

Physical

Colour: Rose-red · dark red

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
25MnManganese Manganese 1 54.938 54.938
47.80%
8OOxygen Oxygen 2 15.999 31.998
27.84%
13AlAluminium Aluminium 1 26.982 26.982
23.48%
1HHydrogen Hydrogen 1 1.008 1.008
0.88%
Total 114.926 100.00%
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
25MnManganese	Manganese	1	54.938	54.938	47.80%
8OOxygen	Oxygen	2	15.999	31.998	27.84%
13AlAluminium	Aluminium	1	26.982	26.982	23.48%
1HHydrogen	Hydrogen	1	1.008	1.008	0.88%
	Total	114.926	100.00%

Synonyms

Mangandiaspore

Literature, links & citation

Citations

1929Chudoba (1929), Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 11.
1944Palache, Charles, Berman, Harry, Frondel, Clifford (1944) The System of Mineralogy (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Mangan-diaspore — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/mangan-diaspore-2563},
  note      = {Accessed 2026-05-11}
}