Bian Shi is a pure natural health care tool, which is hand-polished by natural Bian Shi. In the case of crushing or crushing, the fracture surface will show the true color of natural stone, and the dense structure of stone can be clearly seen.

The stone used to make mounds is relatively weak in hardness, softer and more fragile than ordinary stones. Scratching with a hard object will produce clear marks.

Second, judging from the gloss of the kerbstone surface.

straight

The original stone of Pinbian stone is grayish black after being polished by hand, and it will become black and shiny after long-term adsorption of human oil, which is a kind of black beautiful stone. At present, ochre used in hospitals and scientific research institutions is black stone.

Stones of other colors have not been tested in clinical and scientific research. It is unscientific to distinguish the true and false kerbs by color alone, which is entirely the personal hype of some vendors. Plastic false bian stone has bright luster.

And it is very light, which is obviously different from the natural luster of genuine bian stone.

Third, judging from the feeling of touching the stone.

Pseudo-bian stone is mostly made from ore obtained by mining, and the feeling in hand is cold from the inside out; The real bian stone belongs to pumice on the surface, which has the characteristics of "fine, clean, warm, moist, greasy and condensed", and absorbs heat quickly and dissipates heat slowly, which is one of the reasons why it can be used as a hyperthermia tool.

In addition, because the stone is micrite limestone structure, the real stone can obviously feel its smooth and soft surface, and its fineness is ten times that of jade.

Fourth, judging from the sound.

The real sound of bian stone is more like the sound of metal, more crisp and continuous, so the sound of gold is like jade, and the sound of other stones is like the sound of gongs and drums, which is dull and short-lasting.