Apjohnite
Apjohnite is a manganese aluminium sulfate mineral with the chemical formula MnAl·22HO. It was named after Trinity College Dublin professor James Apjohn. Its type locality is Maputo Province, Mozambique.
Apjohnite is a manganese aluminium sulfate mineral with the chemical formula MnAl·22HO. It was named after Trinity College Dublin professor James Apjohn. Its type locality is Maputo Province, Mozambique.