Cover with plastic wrap or wax paper and set in a place where it will not be disturbed for several days. If the solution was pure enough, you should end up with a single large crystal. Brush a small amount of the liquid onto a glass or bottle. The liquid will quickly evaporate, leaving behind a film of delicate crystals. Stalactites Stalactites are the long rock columns that grow from the roofs of many caves.
Stalagmites are similar columns that grow from the cave's floor.
They are made from the minerals in water that drip down through the cave. It is possible to simulate the growth of these formations. Fill two jars with very warm water. Add as much baking soda or Epsom salts to each jar as will dissolve. Place a saucer between the two jars, which are about a foot apart.