Many players will be curious about a problem, that is to say, the hardness of Hetian jade seed material is high, so they don't eat knives. Some people even use the knife to check the true and false of Hetian jade. Can the knife effectively identify Hetian jade seed material? ? So is this statement and method scientific?
Needless to say, this method sounds less reliable, so let's analyze the reason. First of all, the hardness of many stones is very high. For example, the hardness of kava stone is also 7. It is also impossible to draw with a knife, but it is not Hetian jade, and the quartz stone is also as hard as glass. Also can't move.
On the other hand, the hardness of a general knife is 5, which is not as high as that of Hetian jade. However, if it is a Swiss army knife or a butterfly knife or even a scalpel, Hetian jade is unbearable, so it is Hetian jade. The point of view is also unscientific.
Sometimes using a knife to sculpt a certain position in a jade will have powder-like things, but it is generally in a place where the jade is relatively loose, or in the case of Shibaoyu.
Not only Hetian jade, the identification of any jade needs to be carried out from many aspects. If you rely on the hardness alone, it is easy to be deceived by judging the true and false of jade, and the damage to jade by the knife is also relatively large.
Jeans Zipper,YKK Jeans Zipper,YKK Children Zipper,YKK Locking Slider
YKK AUTHORIZED DISTRIBUTOR , https://www.ykkzipperdw.com