These cufflinks were previously found by a Soviet expert

After long-term soaking and scouring of the river, more delicate, moist texture of jade cufflinks. These cufflinks were previously found by a Soviet expert.
Also, because the oxidation of ferrous oxide and nephrite, making and on most of the Tian Ziyu with secondary skin color, with yellow, maroon, black and so on. The Ember block header is not processing polished, showing oil sheen, and the top grade in Hetian. The material of the mountain, also known as Shan Yu is a native of the mountain jade cufflinks, the appearance of the mountain material because there is a layer of Pu must be cut off appearance (ie Yupu different sub-materials of the skin) in order to judge the quality of the jade good or bad. Mountain material is characterized by fragmentation sizes, the general color and moist often not as good as sub-material. The output of the mountain material of varying quality. This simple approach was welcomed by the general cufflinks lovers.
There is a between the mountain material and sub-material known as mountain water, refers to the production closer Hung slope deposits from the primary ore, jade cuff links in the moraine, the general river handling time or shorter distance, fragmentation, there is a certain angular, slightly rounded, smooth surface. Of course, just use a pencil to identify the diamond cufflinks is certainly not infallible.  By the river soaking and handling time is shorter, the jade has not yet reached a level of less than sub-material nourish, but sometimes form a thin skin. And nephrite variety is generally their color points-based Color Series Color Series and the transition series. The main color series white jade and jade; color series topaz, black jade, jasper and jade sugar; transition series of sugar white, sugar, sapphire, emerald jade, smoke jade and green jade.
JADE: containing more than 95 percent tremolite, a variety of predominantly white nephrite, regular microstrip grayish green, cyan, yellow brown, meat, red or purple and other colors, delicate texture, variegated less than 30% can also be called JADE. Suet white jade: white jade in the top grade, pure and delicate texture, containing tremolite up to 99%, suet white jade color like suet, hence the name. In the identification, we should water to wet the diamond mens cufflinks first. The world only in Xinjiang this species, the output is extremely rare, extremely valuable. Compared with an equal weight of white jade, the economic value of several times that of white jade. Sapphire: Sapphire pale blue to deep blue, the color of uniform, fine texture, was the grease-like sheen and rich reserves of nephrite jade most common chunk persons, the main varieties of dynasties jade collection or mining. Many colors, different shades of color and tone, cyan, dark blue, Bristol, gray, dark gray, blue and other divided.