Can the remedies identify the true and false jade? Not reliable

Recently, some merchants have been exposed to ordinary stone materials with strong acid and chemical preparations soaked into jadeite. Wearing them on the body will release toxins and radioactive elements for a long time, causing serious damage to the body. As a result, many consumers have become "birds of scared bows", and various methods for identifying jade gold in the private sector have been released. However, professionals from the Jewelry and Jade Identification Station of the Guangdong Institute of Geological Sciences pointed out that most of the folk “prejudice” is based on experience and can only be used as a reference. Some “prescriptions” have no scientific basis at all. Ordinary consumers are easy to get into the misunderstanding because of the lack of professional knowledge. To identify jade gold, it is best to find a professional inspection agency.

Jade identification remedies

Recipe 1: boiling method

Truth: It’s totally unreliable. Modern counterfeiting technology is superb and it is not necessary to remove dyes by boiling. And accidentally, it is easy to destroy the jade.

Measure 2: characterization

Truth: Using jadeite to draw glass, this is only effective for those counterfeits that use glass to counterfeit jade, as well as counterfeit jade with jade, jade and other serpentine jade, because these jade have low Mohs hardness and can't scratch the glass. . However, it is a jadeite that is itself dyed, and the C-carved jade that has been dyed the day after tomorrow, or the B-carved jade that has been soaked and glued with strong acid, can be scored in glass, so it cannot be identified.

Folk 3: Tapping

Truth: It is only valid for the sound of tapping. It is only effective for B-car jade. If it is only dyed C-car jade, the sound of tapping is the same as that of A-car jade. Therefore, knocking can not be used as the final method to identify jade, and it is also easy to damage jade.

Folk 4: See if there is "Fly Fin"

The truth: the fresh side of the jade stone or the polished surface is more obvious; the new, thick-structured jade is more obvious; the old, delicate structure of the jade "flies" is not obvious. And C goods, and even B goods also have "flies wings." Other jade also have similar "flies", such as Dongling Stone.

Gold identification remedies

Remedy 1: bite with teeth

Truth: In fact, many metal materials have a low hardness, and biting with a tooth will leave a noticeable bite. For example, copper and silver, both of which leave significant bite marks on the metal. And even if it is gold, the content is 99.9% and 90.0%, both of which can bite. There is no scientific basis for distinguishing which gold is true or false with a tooth bite.

Folk 2: see color

Truth: Golden yellow is the inherent physical property of gold. Under the condition of no analytical test, it is not feasible to see the color by the naked eye. Because gold can add other elements and change the color, there is no scientific basis for this identification method.