Myanmar "Tianlongsheng" jade
I. Myanmar Jade Resources
Compared with the Ming Dynasty (1368-1644) period in China, the discovery of jadeite ore in the Wulu River Basin in northern Myanmar has been mining for 600 years. In the area of ​​250 square kilometers centered on Pagan City, there is a wealth of jade resources. Up to now, there are eight mine areas, namely Longken, Damukan, Huika, Pagan, Xiangdong, Houjiang, Nanqi, and Thunder, and hundreds of mining holes have been opened.
The ancient riverbed and riverbed terraces on both sides of the Wulu River Basin are covered with clay, sand and gravel. The thickness is generally 25~30 meters, and the deepest exploration well is 125 meters. It is the main production horizon of secondary jade gravel, distributed in horses. Sprinkle, card, Pagan base. In the epigenetic oxidizing environment, these jade gravel forms different weathering crusts (shells) with different textures, and the shell minerals produce secondary changes, which are dyed with different colors. Because the jade gravel is transported and abraded, the hard part is retained, and the soft one has been peeled off. Therefore, the jade gravel texture is generally good, and some are also called old species.
Although the jade resources of Myanmar have been continuously excavated for 600 years, they are also part of the area of ​​250 square kilometers centered on Pagan City. They are still very rich, not as fast as people have guessed, and recently in the Namo Mine. In the cave, a lenticular ore body with a length of 35 meters, a tendency of 12 meters and a thickness of 8 meters was found, and a jade original ore body with a weight of 11,188 tons was calculated.
According to geological data analysis, the jadeite rock formed under high pressure and low temperature conditions is produced in a series of fault zones formed by the collisional compression zone between the Eurasian plate and the Indian plate. The storage area of ​​jadeite is promising to extend southward to the bacteria. The base lake extends northward to the grape and even north. It covers an area of ​​about 15,000 square kilometers. It is still a virgin land. It is a favorable area for the production of jadeite, which is 60 times the main mining area.
Second, Longken Tianlong Jadeite
The Longken Mine Area is one of the most promising areas for finding new mines. Many new veins are found here, and Tianlong Jade is formed in this area. Tianlongsheng Jade is one of the new jadeite excavations discovered in Myanmar in recent years. In 1991, the Burmese villagers discovered green soil on the surface of Longken, which became the prospect of prospecting. In 1993, the Myanmar government opened the emerald market policy, and in 1994, in the green soil. Under the head of the seed, the original outcrop of the ore body was discovered, and more than 20 holes were collected. The ore body is like a dragon coiled around, and the local screams "Tianlongshengsheng". In 1999, Tianlongsheng jade material appeared on the market in Yangon and Hong Kong. Due to the huge amount of mining, Tianlong Jadeite was basically exhausted in 2000, and the mineral material was Some bosses gathered, and the mineral materials in the market are still in the process of trading.
3. Tianlongsheng jadeite minerals and rocks
Tianlongsheng Jade is favored by green and green, which can be made into full of green jewelry, but it is limited due to poor overall transparency.
The mineral composition of Tianlong Jadeite is mainly chrome jadeite, as well as jadeite, hornblende, apatite, limonite, and the color is green, especially bright and uniform. The crystal of chrome-containing jadeite is semi-self-shaped columnar, fibrous crystal, and the grain size is invisible to the naked eye. It is still fine-grained, very clear medium-thick grainy, chrome-hard jade coarse-grained crystal chromaticity is very significant Np - green, Nm - no ~ light yellow, Ng - yellow. The emerald green chrome jadeite is assembled into a strip-like parallel distribution, which is a chrome-bearing jadeite, and some of them are vein-like in grayish-white, light-yellow-yellow chrome-bearing jadeite. According to relevant information, the chrome-containing jadeite contains Cr2O32-5%, the color is green and bright, Cr2O3>5% and contains Fe color greenish dark, Cr2O3<2% color greenish and light.
Fourth, Tianlongsheng jade material eight grades
Level 1: The color is all green, the transparency is high, and it is a particle-like aggregate. The jewelry is exquisite, the water head is 3 points, the white flower and the crack are not, and it belongs to the glass type.
Level 2: The color is all green, similar to the first level, in the form of a particle-like aggregate, the transparency is slightly lower, the water head is 2 points, and the white flowers and cracks are less.
Three to four levels: the color is all green, translucent, fine grain - medium grain, 1 point of water head, white flowers, cracks.
Five to seven grades: the color is all green, slightly transparent - opaque, the grain is "granular", the head is half---no, there are white flowers, dry green.
Eight grades: the color is uneven green, the grain is thick, opaque, white flowers, cracks, and is a dry green.
Five, Tianlongsheng jade craft
In order to ensure that the jewelry has a certain head, the thickness of the jewelry is moderately selected (2~3mm), and some thin ones such as leaves, fins, butterfly ornaments, and crystallized "patterns" inside the jadeite can be seen. In platinum, white gold, inlaid with Tianlongsheng jade, such as jade buckle, thin jade Buddha, thin Guanyin, thin drip pendant and so on.
In Shanghai, Tianlong Jade Jewelry has been sold. The Shanghai Geology and Jewelry Jade Testing Center has detected batches of bead chains, jade buckles, and butterflies.
The bead chain-beads are composed of fine-grained jadeite, which is full of green and slightly transparent.
The jade buckle-hard jade crystal is a medium-fine-grain columnar crystal-morphing aggregate. The border of the emerald green crystal is very clear, full of green and translucent.
The butterfly-Jadeite crystal is a medium-fine-grain columnar crystal aggregate. The border of the emerald green crystal is very clear, full of emerald green, translucent, white 18K gold supporting the flaky wing, with diamonds and rubies.
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