These misunderstandings about identifying dangerous materials are widely circulated. Have you fallen into any of them?

Guatemalan jadeite refers to Guatemalan jadeite . In addition to Myanmar, Guatemala is also one of the main jade production areas. The jade it produces is rich and varied in color, including green, purple, yellow, black, etc. Guatemala material is also jade, but compared with Burmese jade, the overall quality is less, and it is relatively thin. Of course, there are also very good and top-grade jade from Guatemala material, but they are very rare.

The output of Wei jade is large but the price is low. It also has a similar appearance to jadeite, so it is often sold at high prices by unscrupulous merchants as Burmese jade, causing many novices to be deceived.

(Myanmar Jade)

At present, there are still some widely known misunderstandings about identifying dangerous materials circulating on the Internet, misleading everyone. Today, the editor will list several misunderstandings about identifying dangerous materials. Have you fallen into these misunderstandings?

1. Density cannot be used as a scientific basis for identifying the origin.

The density of Burmese jadeite is between 3.30-3.36, and the density of dangerous material is between 3.20-3.34. The density of dangerous material is slightly lower than that of Burmese jadeite, but if Burmese jadeite contains a certain amount of albite, the density will also decrease. Some dangerous material can even meet the national inspection standards and obtain an appraisal certificate. Therefore, the density cannot be used to determine whether it is a dangerous material.

High-density inclusions cause the density of dangerous materials to increase

2. The proportion of omphacite mineral components cannot be used as a scientific basis for identifying the origin.

There are rumors that mineral components mainly composed of omphacite are not dangerous materials? However, after laboratory testing, it was found that the infrared spectrum of the dirty cotton was that of dangerous jadeite mainly composed of diopside.

Infrared reflectance spectrum of omphacite

3. The proportion of coloring elements cannot be used as a scientific basis for identifying the origin.

Rumor has it that hazardous materials do not contain chromium and are colored by iron? The UV spectra of the first two green samples show absorption peaks of iron and chromium, while the gray-green iron absorption peak of the last two samples is obvious without any chromium absorption peak, so the green color of the material is also caused by chromium.

The iron absorption peak is obvious and the chromium absorption peak is not seen

In short, it is not scientific enough to distinguish dangerous materials based on a single feature. It is more scientific to return to the traditional way of evaluating the value of jadeite based on its type, water content, color, and workmanship.

Weihai jade and Burmese jade each have their own advantages. The purpose here is not to say which one is better or worse, but to let everyone learn the difference between the two, so that you will not be misled by merchants when purchasing next time. We also hope that merchants can openly state the difference when selling Weihai jade, rather than misleading and deceiving consumers.