Smoke Crystal is one of the most attractive members of the crystal family, referred to as smoke crystal. Some people think that the beautiful color of this gem is caused by the radioactive material contained in the rock around the original deposit, and is actually found in the surrounding rock in the Swiss Alps.
The radioactive content varies with height. This change caused a difference in the color or hue of the smoke crystals in the area. According to this inconsistency, experts can be more confident in finding the crystal and its variants.