Basalt stone is a commonly used building material in modern decoration. People usually use it for decoration and embellishment, especially in some retro buildings where basalt stone needs to be aged. Many people may not be familiar with this process. Let's take a brief look below:
1. Some places are actually not suitable for newer basalt stones. If they need to be aged, they need to be heated with fire, mixed with alum water to make yellow soil and spread on top. After drying, they will look older.
2. To make old basalt stones, you can also use incense burners to fumigate a layer of raw material on the stone. Place it in a sunny place and spray more water a few times a day. After a while, brush off the floating soil to achieve the purpose of making old stones.

3. Another method of aging is to use potassium permanganate to rinse with boiling water, apply it to the stone until the potassium permanganate penetrates into it, and then rinse the surface with clean water according to the depth of the color.
Everyone has a basic understanding of the work of making old basalt stones. If you encounter such a situation in the later stage and need to make old stones, you can follow the methods introduced above to carry out the operation.