A limestone formation formed by the evaporation of (dripping) water on the rock surface (often in the shape of a rib that protrudes or even hangs freely from the wall). Often encountered in limestone caves and on overhanging rock faces.
A limestone formation formed by the evaporation of (dripping) water on the rock surface (often in the shape of a rib that protrudes or even hangs freely from the wall). Often encountered in limestone caves and on overhanging rock faces.