New pit material refers to the primary ore that is extracted from the mine manually without any transportation. The surface of the new pit material is fresh, no weathered crust, dense block shape, with edges and corners, often poor transparency, short water head, and relatively fresh color. Pit material is also called Zai material or old factory jade. Generally refers to the original jadeite ore that is mechanically weathered and broken under the action of external force, and is “transported” to the jadeite gravel accumulated in different places in hillsides, river valleys, floodplains and river terraces. The shape is generally round to pebbles, with different thicknesses on the surface. One weathered leather shell. In the long geological age, these ores have been subjected to the oxidation of water soaking, with good transparency, long water head, bright color and warm texture.
2. Divided by color
Green jadeite is called “Cui”. 一般的に, the greener the color, より良い. The bright color “Gao Cui” is the best.
Red jadeite is referred to as “ジェイド” and has yellow, yellow-red, red-brown and deep red tones, with deep red and bright red being the best.
Violet jade is abbreviated as “purple jade”. Lavender is the most common, while deep purple and deep purple are rare and most precious.
Fu Lu Shou jade refers to the three colors of green, red and purple appearing on a piece of jade material or jewelry at the same time, which is extremely valuable.
White jadeite is generally white to colorless. Sometimes star-shaped other colors can be seen, and this type of jade is the most common.
3. Divided by processing and processing technology
It is divided into natural jadeite and processed jadeite, which are called goods A, B and C in the market.
Item A is completely natural jade, which means that after the rough jadeite is excavated, there is no chemical treatment of the stone, and there are also jade finished products that have only been cut and polished, regardless of the color or texture. .
Goods B is jadeite rough, soaked in strong acid to remove impurities, usually filled with other substances (一般的に樹脂) to strengthen the loose structure of jadeite after being eroded by strong acid, as long as the jade treated by acid is called B goods. しかし、商品Bは染色されていません, したがって、色はまだ自然です. The price of the processed goods B is much different from the price of goods A with similar appearance, そして何十回以上異なるかもしれません.
Goods C is dyed jadeite, and its color is artificial rather than natural. 製品Cの組成はまだjaですが, the price is lower than that of product A, ジェイドの色は価格を決定する上で最も重要な要素だからです.
Jadeite that has gone through the processing steps of goods B and C, つまり, the two steps of pickling and dyeing, B+C商品と呼ばれます.