和田白玉羊脂玉

How much do you know about Hetian Baiyu Yangzhiyu? Today, Xiaobian will introduce you to the details in detail, friends who like to study, come and have a look.

Hetian Baiyu

Nephrite, the title should be relatively relative to jadeite (jade), the English translation of nephrite is Nephrite. This English name is derived from the Greek language and has the meaning of "kidney". This is the ancient Europeans who believe that hanging this jade on the waist can cure kidney disease. It seems that ancient Europeans, like the ancient Chinese, are superstitious in jade.

Hetian Baiyu identification

1: Don't just look at the cheap price, and you can't even listen to these unethical traders telling the story of the sky. Don't think that you are very smart to be able to sell things. The production of white jade is small and the raw materials are depleted. With the improvement of living standards, more and more people like white jade. The price of natural good white jade is naturally higher, so at the time of purchase, some people bought fake products for the sake of cheap.

2: When you buy something, calculate the cost for the object a little, it will not be fooled. The engraving of white jade is mainly by artificial means of engraving tools. Now technology products can be used on tools. Engraving is also mainly done manually. The white jade carvings are very demanding, and all the subtleties are hand-made by the jade carving master, polished to a fine and rounded. Therefore, the processing fee of white jade is also an indispensable cost.

3: The texture of white jade is very detailed, the hand feel is very warm, and the gloss is soft. If you put a jade in your hand, do you feel heavy, and then see if the gloss of this white jade is waxy and there are no bubbles inside. Feel if you feel warm with your hands.

4, white jade transparency detection:

Transparency is the true performance of jade transmission intensity and one of the important indicators for testing white jade. This kind of performance has a very close relationship with the internal structure of white jade. At the same time, it can play a role in the quality of white jade and color.

To test the transparency of a piece of jade, there should be three conditions: one is to have a light source; the other is that the jade material is polished (can truly reflect its strong and weak absorption of light); the third is the thickness of the jade material.

Sheep fat white jade

Sheep fat white jade, also known as "white jade", "sheep fat jade", as the name suggests is like jade (commonly known as sheep oil) jade. The interpretation of modern gemologists is: high-quality white jade, its color is white or white, slightly light blue, milky yellow, etc. The texture is fine and moist, the oil is good, and there are a few stones and other impurities. The sheep white jade mainly contains tremolite (95%), actinolite and epidote, which is like gelatin, which is a kind of nephrite. The ancient biography "白璧无瑕" means white jade, and the white fat jade is a high-quality variety in jade. The toughness and wear resistance are the strongest in jade. The jade of white fat white jade is soaked in the groundwater of the Kunlun Mountains under the wasteland or oasis for millions of years, and the output is rare and of high value. The white fat white jade crystal clear white, delicate and moist, but less sputum, "white as a fat." Its characteristics are that it is particularly delicate, bright and warm. The best sheep fat white jade is almost innocent, like the fat sheep fat meat that has just been cut, and the gloss is just like the condensed fat.

Identification of sheep fat white jade

The identification points of sheep fat white jade must meet five aspects, namely, pure texture, fine structure, water head, color sheep white, oily weight.

1. Pure texture - the mineral content of tremolite in sheep fat jade reaches 99%.

The sheep fat jade exists in the most perfect part of the wall rock alteration. When the granodiorite is in contact with dolomite, a series of contact metamorphic rocks are formed, and the dolomite becomes dolomite marble. The late magmatic hydrothermal fluid along the dolomite marble tectonic fissure channel is metamorphic to form tremolite.

The surrounding rock erosion is transformed into three kinds of lithofacies of dolomite marble-tunnelized petrochemical dolomite marble-metamorphic rock, and the sheep fat jade is found in the tremolite rock facies.

2, the structure is fine - the tremolite in the sheep fat jade is microscopic fibrillar crystallized crystals and aggregates, the crystal size of the tremolite can be determined under electron microscope and optical microscope, the tremolite fiber in the sheep fat jade The length (longitudinal) is 0.033-0.01 mm, and the width (transverse direction) is 0.0006-0.001 mm. These microscopic, fluffy, felt-like tremolite crystals are intertwined to form a pile-like structure, a felt-like structure, and an interwoven structure. [4]

Microscopic, fluffy, felt-like tremolite crystal aggregates, characterized by orthogonal polarized light, do not exhibit uniform extinction at the same angle.

3, water head foot - water head, spirit land is the name of jade transparency, in tremolite jade often from the thickness of 2mm as the standard, white jade in this standard is translucent - opaque, the head of the sheep fat jade shows translucent shape.

4, the color is sheep fat white - sheep fat white is not pure white, but white with oily luster, some in white can reveal a slight yellow, poor texture can also reveal a slight shallow in white Gray tone.

5, oily weight - sheep fat jade in the process of people's palms constantly touch, self-contained, on the surface of jade produces a "oily" feeling, in some Hetian fine white jade also has this phenomenon, when the sheep fat jade pendant In the water, the jade body is lifted, and the dripping water is not sticky. Therefore, the oily heavy sheep fat is also excellent, and the so-called cotton, which is toughness.

Knowing the new things, you can be a teacher. Through the above introduction, have you got a new harvest? I hope that the introduction of this article will help you.

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