Forming Salt Stalactites

At the weekend a month ago I made an experiment to make salt stalactites.
Here is the experiment if you want to make it.
I put water with lots of salt in two plastic glass.
I took a 30cm wool string. I put 1 end into each glass of plastic so that the end of the string touched the water.

You need to wait several day for the salty water to make the stalactites and if you are lucky
like me you also have crystals!
Some crystals were formed 2 or 3 days ago, we were amazed how they were made out of
salt.