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What is the new species and old species of jadeite?

The new species is also called the new pit, the new material, and the old species is also called the old pit and the old material. There are always many people who misunderstand the concept of new and old: often think that new pits, new species, new materials, refers to the newly mined, newly processed jade; old pits, old species, old materials are the old jade, mining and processing, In fact, not. The new species refers to the original mineral jade. Its raw material is no pit stone or rock in the new pit. These jadeites have no outer skin, the texture is rough, the crystal grains are large, the water content is poor (refer to poor transparency), and the specific gravity is also slightly light. The old species refers to the secondary mineral jade. Its raw materials are water stone or water turning sand. These jadeites have outer skin, fine texture, small crystal particles, water head (good transparency), and heavy specific gravity. Therefore, the new species and the old jadeite do not refer to the era of jade mining and processing, but the difference in the texture of jade itself. There is also a kind of new and old species, between the old species and the new species. Its raw materials are half-mountain and half-water stones, and the texture and species are also between new species and old species. The price of the old jade is much higher than the new jade, which means that the price of the delicate and high-transformed jade is much higher than that of the rough and poorly-transformed jade. The difference in price is the material of the jade itself. Decided, and the era of jade mining and processing has little effect on the price of jade. This feature of jade is very different from nephrite. At present, the price of Qingye white jade in the auction market is about ten times that of the same grade white jade, and the price of clear jade is only 10~50 higher than the price of the same grade new jade. %. Therefore, Lao Cui Xin Cui refers to old workers, new workers, or old species, new species, must be clear, can not only vaguely say old and new.

Jadeite is indeed divided into "old" species and "new" species. This is the title summed up by the industry insiders for many years, and it is also what we need to distinguish.

The so-called "old" species of jade does not mean that it formed the age of the times, but that its ore-forming conditions are good and the diagenesis time is just right. Such jadeite presents a delicate texture, dense, watery and lustrous texture. .

The "new" species of jade does not mean that its formation time is new, but that its diagenetic conditions are not as superior as the old ones, and the diagenesis time is not sufficient. The performance of the jadeite is rough, not dense enough, and the gloss is weak.

From the perspective of mineralogy, the species of jadeite is mainly influenced by the mineral composition, color, structure and transparency of jadeite. The "new" and "old" of the jadeite species are the reflection of the complete transformation of the late jadeite.

The “old” jadeite has a single mineral composition, uniform and fine mineral particles, compact structure, pure green color, uniform color distribution, good transparency and high hardness. The new species is the opposite.

The “old” high-quality jadeite has been transformed after many mineralization periods, including the later dynamic metamorphism and the replacement of chromium-containing hydrothermal fluids. It has formed a fine texture, high hardness, uniform color and bright color, and good optical effect. Emerald. The “old” jadeite is also prolific in the Quaternary conglomerate deposits and modern river sediment deposits. This is because the emeralds retained by the weathering and erosion of the rivers in the secondary environment are mostly jade with high density, good quality and less splitting.

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