Tianhe stone is a common mineral produced in volcanic rocks. It is one of the feldspar minerals and contains potassium aluminosilicate. Blue and blue-green, translucent to slightly transparent, similar to jade. The most obvious feature is that it has green and white with plaid spots and glitters. The Tianhe stone, sometimes used as a gem, is a kind of green micro plagioclase. Then how to identify the true and false of Tianhe Stone?
First, feature identification:
1. Many Tianhe stones have white lenticulars in the form of small lenses, white, yellowish white or pinkish white. Tianhe stone has obvious characteristics. It has green and white plaid spots and glitters, which is caused by its unique and unique twin crystal structure. This is the fundamental difference from jade. Because the value of jadeite is very high, it is only the case that the emerald stone is used to imitate the emerald.
2, Tianhe stone is usually light to medium blue green, gray green, emerald green Tianhe stone can be used as a substitute for jade. Micro-transparent, glass luster, is a single crystal, does not have the structural characteristics of polycrystalline aggregates, so the characteristics of the granular structure are not seen, the color distribution is uniform, and the cleavage surface is often seen, the cleavage surface has a flash, and the jade The green nature is somewhat similar, but the cleavage surface of the Tianhe stone is large and the direction is single, which is different from the jade flash of the jade.
3, blue fluorite is a kind of stone similar to the Tianhe stone, the appearance is very similar, and is often used to counterfeit apocalypse, but in terms of value, there is almost no difference. The way to identify them is to observe their texture through light. The obvious difference.
4. The relative density of Tianhe stone is 2.65, and the refractive index is low, about 1.53. It can also be used as the reliability of identification.
Second, the original stone identification:
1. The large rough stones of the Tianhe Stone are often composed of a variety of minerals, even rocks that are mixed with surrounding rock fragments. They are mostly translucent to slightly transparent, and the green part of the rock is Tianhe Stone.
2. The relative density of Tianhe stone is much lighter than that of jadeite. The hue of the color is blue, so it is easy to recognize as long as you pay attention.
3, Tianhe Shichengwei crystal, a single crystal can reach 10-30mm, so there will be a large cleavage surface, if carefully observed, in this flat cleavage surface can often see dense parallel polycrystalline twin Grain.
Origin of Tianhe Stone
Representative origin: Brazil, the United States, Canada.
The main producing areas in China are: Sichuan, Inner Mongolia, Yunnan, and Jiangsu.
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