Rare. The frequent association with azurite suggests that dundasite was primarily a first oxidation zone mineral. However, Von Bezing et al. (2014) attribute dundasite primarily to the second oxidation zone.
- 1st Oxidation Zone
- 2nd Oxidation Zone
Paragenetic and General Notes
Keller (1977) places dundasite in one of his "Type I" parageneses (i.e. mineral sequences forming at higher pH ranges):
Duftite >> dundasite >> cerussite >> azurite >> malachite (ps. azurite).