The Heavenly River Stone had lines, which were either green or white, that is, light green, and its lines were very uniform, like tiger skin. The surface of the Heavenly River Stone generally had black mica, and there were hidden cracks inside. These were the natural lines of the Heavenly River Stone.
The Heavenly River Stone has lines. The lines of the Heavenly River Stone are green or white, that is, light green, and its lines are as well-proportioned and fine as pork belly, forming yellow and brown stripes, like tiger skin. The Heavenly River Stone with this characteristic is a very pure variety.
Most of the Heavenly River Stones had small black spots on their surfaces. These small black spots were the black mica attached to the surface of the Heavenly River Stones, and they were also one of the characteristics of the lines of the Heavenly River Stones. This kind of Heavenly River Stone with black mica had a strong energy magnetic field, and its effect was greater than that of the Heavenly River Stone without black mica, which was greatly beneficial to health.
Also, when the Heavenly River Stone was polished and polished, there would be shining spots on its surface, similar to the rainbow eye phenomenon of obsidian, and the shape of the shining spots was not very regular. This was a natural phenomenon caused by the hidden cracks inside the Heavenly River Stone.