A raw material and gambling stone:
According to the pattern of production and transparency, there are mountain and seed materials; old species and new species. The gambling stone is a jade raw material with "gambling".
(1) Mountain material and seed material: The raw material mined from the primary mine is called “mountain materialâ€; the raw material extracted from the secondary mine is called “seed materialâ€.
(2) Old species and new species: refers to transparency, high transparency is called old species; low transparency is called new species. There is no strict boundary between the two, and it is also called "planting water" in business.
(3) Gambling Stone: The gambling stone has the nature of gambling. Some people say that gambling on the stone can make a fortune one night, or it can be ruined. This is not all scaring. There are indeed many amazing stories about this. ....
Zhao Dehua, the general manager of Shanghai Chenghuang Temple, went to the China-Myanmar border market to purchase jade raw materials every year. The scenes he saw in the past two years also made him feel scared. In the past, when he saw the domestic merchants’ partnership gambling jade, he generally invested millions of yuan, and in the local area, he would spread the news to the four towns and eight neighbors. He said: "This year (2005) I saw two businessmen from Zhejiang, who invested 14 million euros to gamble on two piles of rough stones, then the figure reached 150 million yuan." Smart Zhejiang businessman, against jade The prospect is very optimistic, the original stone pressed on the hand can ensure annual appreciation, just like investment real estate, the price increase of the property must be greater than the bank interest.
On November 3, 2009, China Jewelry Academic Exchange Conference, Zhang Zi and Mr. Zhang, from the Department of Geology and Geological Survey of Yunnan Province, pointed out that the reason why the jade gambling stone is difficult to understand is that the jade metallogenic geological conditions are complex. The intrusion of the deposit in the Precambrian metamorphic strata has experienced a long geological evolution process of more than 800 million years. The gambling stone reflects the most complex geological evolution environment, so it is ever-changing and difficult to ponder. For example, the brilliant green comes from the decomposition of the chromite ore series of minerals, while the distribution of chromite in jadeite is not regular, and the probability of chromite may be contained in each jadeite that is later produced, which is about low. Less than one millionth. Dispersed and small pieces of chromite appeared less, while large pieces of chromite later formed Tielongsheng and dry green blocks. For example, in the process of intrusion of emerald magma into the surrounding rock dominated by hornblende schist, assimilation and mixing, metamorphism and metamorphism occur, and complex composition changes and structural changes continue to occur. Another example is the complex changes after the formation of jadeite, the residual rock, the weathering and handling of the surface, etc., even if there is a saying that "the god is difficult to break the inch", it is not surprising.
Zhang Wei and Mr. pointed out: 1 common gambling stones that are easy to identify: If the surface of the gambling stone has a coarse grain size, it is usually difficult to have a fine green jade inside; the surface has a green veined jade, which can be seen along the vein to see the green to the inside. Change; if the emerald on the skin is blue or blue-green, the interior color is usually similar or similar. 2 gambling stones that are clear or easy to observe: small pieces of material; small size, cut material. Emerald with 3 colors and high transparency is easy to observe so as to distinguish it from water foam and quartzite. 4 gambling stones that are not risky to bet: the jade production area is accompanied by other rocks, pay attention to identification. If careful, albite jade (water foam) posing as jade.
The second and fourth killers:
Water Moss, Tumbler, Kunyu, Mozhi Stained in the jade market known as the "four major killers" (Zhang Zhubang, 1997, Jewelry Technology No. 2), the average person with the naked eye to observe the true jade, sometimes the boundaries are not very good, Many people are deceived. The results of the appraisal research by Professor Wang Shizhen of Peking University are as follows:
(1) Water foam: ice, egg green or glass, white, accompanied by blue and green flowers. Granular crystal structure, plagioclase (sodium feldspar) 90%, pyroxene (hard jade, omphacite, diopside) 2-4%, amphibole (magnesium sodium iron amphibole, magnesium sodium calcium amphibole and siliceous Asbestos) 3-6%. The density is 2.56-2.64. Hardness 5.30-5.99. Fluorescence generally does not respond, and a few localities have luminescence.
(2) Tumbler: Green, the grape produced in the northeast of Pagan in northern Myanmar, because the grape sound is similar to "tumbler", hence the name. There are two kinds: 1 water head difference, translucent - opaque, green is mostly spotted or strip-shaped; granular garnet (water calcium aluminum garnet) 90%, a small amount of slanted scutellite and Fushan stone, trace magnetite. The filter turns red. Fluorescence is not reactive. 2 water head foot, translucent - transparent, green more uniform, the original stone is veined. It is mainly composed of amorphous opal and chalcedony and quartz. The filter is reddish. Fluorescent white.
(3) Qunyu: Or "difficult", Chinese Burmese. Like the water foam, it entered the jade trade market on the Yunnan border very early. Like water stone, gray-green, good water head, cut off with cyan strip pattern and more impurities. Sub-transparent - translucent. The study was amphibole jade (nephrite). Amphibole (Tremolite and actinolite) >95% with trace magnetite. Hardness 5.99 - 6.20. Density 2.95 - 3.02. Fluorescence is not reactive.
(4) Moshui stains: Some are called "Mozishi", common in Yunnan Ruili and Tengchong jade market, dark green-black green, most colored waterless, and also have a slightly better water head, commonly known as "broad film", the purchase price Higher. Ms. Ouyang Qiumei is called “dry green jadeâ€. There are mainly pyroxene (sodium chromite, chrome jadeite and jadeite) and amphibole (blue amphibole and sodium fluoromagnesium amphibole) minerals and composition, and a small amount of chromite, albite, serpentine and carbon Acid salt. Yanqing is closely related to chromite ore, mainly formed by the replacement of chromite. Hardness 5.6-7.3. Density 3.17 - 3.47. Fluorescence is not reactive.
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