Artificial stone, Guarantee at least 5 years without deformation,
Artificial stone will not be less radioactive than natural marble,The only advantage of man-made stones versus natural stones is that they are cheap.
For natural marble, Everyone says natural marble radiation is high and dangerous, but the fact is that the radiation of natural marble is very low in building materials.
If the natural marble radiation is so high, the quarry worker will not be sick or die a lot, and that's not like this.Most of the natural marble used in advanced places, such as hotels, luxury houses and so on.
But It's necessary to remember to measure the radioactivity before purchased.