What is the identification method of jade stone? As the saying goes, "The immortal is difficult to break the inch jade." In the Chinese product market, the number of people investing in jade is not countable, but there are not many people who actually invest in jade. Investing in Yuyuan Stone has the saying that “one knife is poor, one knife is rich, and one knife is worn in Xiabuâ€, but the investment in Yuyuan Stone has a large space for imagination, design and creation. The jade that is not carved through processing is called jade stone.
According to statistics from the China Jewelry and Jade Jewelry Industry Association, the total sales of Hetian jade in China has exceeded 18 billion yuan in 2010. By 2011, total sales are expected to exceed 20 billion yuan. The recent stock market downturn, the fall in gold prices, and the decline in real estate, compared with the glamorous composition, is that Hetian jade's price is firm, and both the seed and the sculptured works are appreciating. In particular, the appreciation of the top-quality sheep fat jade seed material and the craftsmanship of famous masters and master craftsmen is even more impressive.
What are the identification methods of jade stone?
For the identification of jade raw stone, the appraisal organization will generally identify the variety, composition and characteristics of jade. In addition, there are many factors affecting the value of jade, such as weight, dimension, texture, appearance, etc. The personality characteristics of jade are very strong, but not Estimate the origin and type.
1. Density hardness method: The density and hardness of jadeite are higher. The density of common marble, quartzite, albite jade, etc. is less than that of jadeite, and the density of gambling stones that are hollowed out will also decrease. The hardness of marble is significantly less than that of jade.
2, structural construction method: jade is a fiber staggered structure, block structure. This determines the hardness and toughness of the jade. Marble and quartzite are granular structures with significantly less toughness than jadeite. Looking at the gambling stone incisions with a magnifying glass reveals the difference in their construction.
3, mineral composition method: gambling stone fake skin is specifically calcite, quartz, senior stone, illite, dolomite, barite, feldspar and so on. The bubble reaction was detected by the drop acid method. The minerals of the real gambling stone are mainly jadeite.
4, knocking and peeling method: fake door gambling stone knocking has a sense of openness. Fake leather gambling stone wash or a little peeling with a needle tip.
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