Let's analyze the formation process of both deposits. As mentioned before, they are formed by a process of chemical precipitation. These minerals that precipitate are dissolved in water. These formations form because the CO2 dissolved in rainwater forms calcium carbonate upon contact with limestone. Depending on the rainfall pattern and the level of water infiltration, these formations will occur sooner or later. Rainwater seeps through the ground and dissolves the limestone. As a result, these drops form these deposits. Calcium bicarbonate is highly soluble in water and is what forms upon contact with the CO2 brought by rainwater. This bicarbonate produces an outcrop where the CO2 escapes, which, upon reacting, precipitates as calcium carbonate. The calcium carbonate begins to form certain concretions around the point where the drop falls. This only occurs in stalactites, as the drops fall due to the force of gravity, which forces them to fall to the ground. Therefore, the drops eventually spill onto the ground.
Where to see these formations
You've probably been fascinated if you've never seen these formations before (which isn't the most common). However, we're going to tell you where you can find the largest stalactite and stalagmite formations. Since they form very slowly, they only grow 2,5 cm in length, taking about 4.000 or 5.000 years to form. The largest stalactite in the world can be found in the Nerja Caves, located in the province of Malaga. It is 60 meters long and 18 meters in diameter. It took 450.000 years to fully form.
On the other hand, the world's largest stalagmite is 67 meters tall and can be found in the Martín Infierno Cave in Cuba. I hope this information has sparked your curiosity about stalactites and stalagmites.
