pruunikashallikas
Pruunikashallikas is a term originating from Estonian, roughly translating to "brown-grey spring" or "brown-grey source". It refers to a type of natural spring characterized by its brownish-grey mineral content, often due to the presence of iron compounds or other dissolved substances that precipitate out upon contact with air. These springs are not a distinct geological formation but rather a description of water emanating from the ground that has a particular visual appearance.
The coloration in pruunikashallikas springs is typically caused by dissolved iron (ferrous iron) in the groundwater.
These springs can be found in various geological settings where groundwater interacts with iron-bearing rocks or