田黄石鉴定方法市场行情怎么样 Yellowstone market value evaluation

田黄石鉴定方法市场行情怎么样
寿山石品种繁多，色彩斑斓，不同的石种从外形、色泽至肌理，都有其独特之处。虽然上佳珍品和粗劣下品之间有天壤之别，外行的人凭着肉眼也能断其优劣，但是，假如把一百多个寿山石品种全部集中陈列在一起，要求一一道出其品名，别说一般的寿山石爱好者，就是行家里手，恐怕也得眼花缭乱，三思而慎言。尽管目前市面上常见的寿山石只有二三十种，但是，色泽相近、品质相似、肌理相似者，也不乏有之。再加上造假技术也渗透到寿山石市场之中，这就使寿山石的鉴别显得更加复杂，从而也增加了鉴别的难度。
怎么鉴定田黄石和寿山石的区别？
培养和提高寿山石的鉴别能力，主要有如下几个渠道。
第一要勤于学习、第二要严谨治学、第三要见多识广、第四要交流切磋、第五要追求精品
二种常见的鉴别法

A、经验识别法 在长期的实践中，寿山石行家们积累了丰富的鉴别经验。虽然不同的鉴别行家，总结的经验和鉴别方法不尽完全相同，但归结起来，其切入点不外乎以下几种：一是外形，包括形状、棱角、皮相；二是色彩；三是质感；四是肌理，包括纹路、裂格。
田黄石的识别

如何鉴别"石中之王"田黄石，这是寿山石收藏家和鉴赏家十分关注的问题，也是他们必备的一种鉴别能力。古今寿山石鉴赏家和研究者鉴别田黄石的经验可归纳为形状、石皮、色相、肌理、格裂形态、手感和比重。

（1）形状 根据田黄石的地质形成和演变历史，一般的田黄石都保持其天然的形状，即鹅卵形状，但在上板坑头附近出产的田黄石，有时也有棱角，这是因为这里接近溪流的源头，田黄石缺少滚动、磨练的机会。此外，还有少部分田黄石，在埋藏地下的过程中，因地壳运动，石身裂碎，分成几瓣，形成棱角，虽然经过泥土的长期滋养，但断面的棱角并未被磨平，因此有时石农在挖掘发现这种断裂性田黄石时，通常还会继续在附近寻找它的"另一半"。

（2）石皮 除了少数田黄石外表无石皮外，一般情况下，田黄石外表都有皮层包裹，因此有无石皮是鉴定田黄石的一个重要依据。

田黄石的皮层，或极稀薄、或稍厚密，石皮颜色主要有黑、黄、白、绿，皮层有单层、双层和三层，皮质比其它掘性寿山石的石皮质地要细结柔嫩，用刀轻刮，刀感流畅而微沉，粉粒细腻均匀。

Yellowstone identification method how to market Shoushan stone variety, colorful, different kinds of stone from the shape, color and texture to have their own uniqueness. Although there between a good and poor treasures beneath contempt worlds apart, lay naked people with their advantages and disadvantages can be broken, however, if the more than one hundred varieties of Shoushan stone all the focus on display together, requiring one tells its name , not to mention the general Shoushan stone enthusiasts, is the expert in, I am afraid they have dazzled, think twice and cautious. Although the common market only two or three dozens of Shoushan stone, but similar color, similar to the quality, texture similar to those, there are some with them. Coupled with fraud technology to penetrate into the market Shoushan Stone, which makes identification of Shoushan stone is even more complicated, thus increasing the difficulty of identification. How to identify the difference between Yellowstone and Shoushan stone? Shoushan stone cultivate and improve the ability to identify, there are several channels. The first to be eager to learn, and the second to rigorous scholarship, and the third to be informed, to exchange ideas fourth, fifth to the pursuit of quality Two kinds of common identification method
A, long-term experience in the identification law practice, Shoushan stone connoisseurs identification accumulated rich experience. Although different identification expert, lessons learned and identification methods are not the same, but it boils down to nothing more than following their entry points: First, shape, including shapes, angular, skin deep; two is the color; Third texture; Fourth, texture, including grain, cracked grid. Yellowstone identification
How to identify the "Stone of the King" Yellowstone, this is an issue Shoushan stone collectors and connoisseurs of great concern, but also a prerequisite for the ability to identify them. Shoushan stone connoisseurs and researcher of ancient and modern identification Yellowstone experience can be summarized as shapes, stone skin, hue, texture, grid crack morphology, texture and proportion.
(1) is shaped according to Yellowstone's geology and evolutionary history, the general Yellowstone maintain their natural shape, that goose egg shape, but in the vicinity of the plate pit head produced in Yellowstone, sometimes angular, because here close to streams source, the lack of rolling Yellowstone opportunity to hone. In addition, there are a small part of Yellowstone, buried underground in the process, due to crustal movement, crushed stone body split, divided stray form edges, although after a long nourish the soil, but the section has not been polished edges, it is sometimes Stone found that farmers in the mining fracture of Yellowstone, usually in the vicinity will continue to find its "other half."
(2) except for a few stone skin Yellowstone no stone appearance of skin, under normal circumstances, have the appearance of skin wrapped in Yellowstone, therefore identify whether the stone skin is an important basis for Yellowstone.
Yellowstone's cortex, or very thin or thicker dense, stone skin colors are black, yellow, white, green, cortex have single, double and triple, to fine leather knot than other excavation of Shoushan stone to stone cortex soft, scuffing knife, the knife feel smooth and slightly heavy, delicate powder evenly.