Apjohnite
Apjohnite (IMA symbol: Apj[1]) is a manganese aluminium sulfate mineral with the chemical formula Mn2+Al2(SO4)4·22H2O. It was named after Trinity College Dublin professor James Apjohn. Its type locality is Maputo Province, Mozambique.[2]

Apjohnite (white) found with ilesite
References
- Warr, L.N. (2021). "IMA-CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- Apjohnite Archived 2019-03-26 at the Wayback Machine on mindat.org
External links
- Apjohnite data sheet on Webmineral
- Apjohnite on the Handbook of Mineralogy
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