From French alun (“alum”) + -gen.
alunogen (uncountable)
- (mineralogy) An aluminium sulfate mineral often found on the walls of mines and quarries.
- David Barthelmy (1997–2024) “Alunogen”, in Webmineral Mineralogy Database.
- “alunogen”, in Mindat.org[1], Hudson Institute of Mineralogy, 2000–2024.