Manganese-bearing Adamite

Where it forms, where it's found

8recorded occurrences

Source · OpenStreetMap

Safety & handling

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
30ZnZinc Zinc 2 65.380 130.760
32.97%
25MnManganese Manganese 2 54.938 109.876
27.71%
8OOxygen Oxygen 5 15.999 79.995
20.17%
33AsArsenic Arsenic 1 74.922 74.922
18.89%
1HHydrogen Hydrogen 1 1.008 1.008
0.26%
Total 396.561 100.00%
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
30ZnZinc	Zinc	2	65.380	130.760	32.97%
25MnManganese	Manganese	2	54.938	109.876	27.71%
8OOxygen	Oxygen	5	15.999	79.995	20.17%
33AsArsenic	Arsenic	1	74.922	74.922	18.89%
1HHydrogen	Hydrogen	1	1.008	1.008	0.26%
	Total	396.561	100.00%

Synonyms

Manganadamit
Manganadamita
Manganadamite
Manganoan Adamite
Mn-Adamite

Literature, links & citation

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Manganese-bearing Adamite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/manganese-bearing-adamite-8107},
  note      = {Accessed 2026-05-11}
}