The difference between jade and agate: green agate is not bright, flash blue is more uniform, no silk green, green, no green transparency, the ground is obvious, but the sputum (unclear body) has a sugar sugar and material near Without bubbles, green is illuminated under strong light, and the color is small dots.

How to identify green agate and jade:

Green agate is also a quartz aggregate of microcrystals. The difference between it and green chalcedony lies in the geological origin. The formation of agate is related to volcanic activity, while the green chalcedony is formed by the epigenetic geological action of weathering and leaching. From the gemological point of view, the biggest difference between green agate and green chalcedony is that the color of green agate is artificially dyed, and the color of green chalcedony is natural, so the price difference between the two is very large. However, agate dyed green is not for the purpose of counterfeiting jade, but a process of agate tradition. Compared with green chalcedony, the difference between green agate and jade is more obvious. The main features are as follows.

First, the basic characteristics of green agate

Main mineral component

Quartz crystallites (chemical formula SiO2) dominate, accounting for more than 90%, containing varying amounts of clay impurities.

2. Appearance characteristics

The dyed green agate is generally translucent, with a glossy glass and uniform color, but often has parallel ribbons.

3. Physical properties

Refractive index: about 1.55;

Relative density: about 2.80;

Mohs hardness: 7;

Second, the identification of green agate and jade

1. Color and color form

The green agate color is relatively uniform, with parallel ribbons and no common radix of jade.

2. Structural features

The polished surface is smooth, the glass is shiny, there is no orange peel effect, and there is no granular structure.

3. Physical properties

The relative density is about 2.6 and the refractive index is 1.55, which is much smaller than jadeite.

Jade identification

Jadeite is a natural ore. It is called jadeite in mineralogy. Its chemical composition is lead silicate. Its crystal structure is dense and hard. Its hardness is 6-7, its gravity is 3.3-3.4, and jadeite is transparent, translucent and opaque. It is a rare and valuable gemstone.

Emerald is a solid and durable accessory, so it is mostly owned by the royal family and spread to the public. Emerald is one of the famous traditional jewels in China. Jewelry made of jade is extremely popular in the Qing Dynasty.

1. Identify the advantages and disadvantages of jadeite and its value. Generally, it is based on the depth and depth of the jade green, the transparency, the high and low level, and the different aspects of the willow.

1 is divided into colors:

Emerald: Sometimes called "sapphire green", transparent or translucent, pure and impurity-free, green and bright is the best variety in jade.

Glass Green: Bright and transparent like glass, bright green and bright, it is the best in jade.

Brilliant green: transparent or translucent, green is thick but not black.

Huangyang Green: Micro-transparent or translucent, green and fresh, such as the new leaves of Huangyangshu in the early spring.

Parrot Green: Micro-transparent or translucent, green and beautiful, like the green feather of the budgerigar.

Bean green: translucent, green like green bean color, is a more common type of green, often saying "ten green nine beans", "bean bean land".

Vegetable Green: Translucent, green but not clear enough.

Loofah green: slightly transparent or translucent, green to green, like the green of the tender loofah.

Light green: slightly transparent or translucent, light and yellowish, not bright enough.

蛤蟆 Green: Translucent or opaque, green is not pure, with Lancome, cotton stalks often appear in the texture.

Melon skin green: commonly known as "melon color", "melon green", like melon skin green, translucent or opaque, green with more blue, the color is not pure.

Onion green: slightly transparent or translucent, green and bright as green spring green. The pure texture is a good product.

Apple Green: Micro-transparent or opaque, like a green apple.

Plantain Green: Micro-transparent or opaque, like banana leaves green.

Grape green: slightly transparent or transparent, like green grapes.

Dark green: or "money jade", translucent or opaque, although the color is black but not lost green, the pure texture is the best in jade.

Gold silk green: or "rib silk green", this variety has good moisture, transparent texture, green thick and gluten-like, and has common characteristics with loofah green. Although water is enough, its green and texture cannot be mutually Named after the photo.

Plum green: According to the shape of the green shape, sometimes called "dotted flower" or "starry", sometimes the texture is white and bright green, scattered among them, just like the green plum falling in the snow.

The color of jade is extremely colorful. The above colors can only be described as approximate. The understanding and understanding of various colors can only deepen the impression and discriminate through practice.

Generally, red is ç¿¡, green is ç¿ . Usually it is green and pure, the texture is transparent, and the black spots (plaques) without impurities are fine and beautiful.

2 can be divided from "texture":

Glass ground: bright, clear, nearly glass.

Egg white: transparent, fine texture, similar to egg white.

Clear water: transparent, clear, like water.

浑水地: Transparent or translucent, like drowning.

è—• powder ground: transparent or translucent, micro-striped pink or purple, like cooked powder.

Bean land: translucent, fine texture, micro with green.

Finely white: translucent, white, fine texture.

White sand: translucent, white, sandy.

Dry white: opaque, poor moisture, white, looks dry.

Incense ash: opaque, thicker texture, color like ash.

The above-mentioned "textures" are more common, and there are many others. Because of the differences in the regions, their names are not the same, such as white flowers, porcelain, shrimp, white beans, etc. An introduction.

3 jade performance characteristics:

People's understanding of things begins with its appearance and inner essence. The same is true for the knowledge of jade, so to understand and study the essence of jade, you must first understand the common sayings of jade, which is very helpful for understanding and understanding jade. The common sayings about borrowing Tsui are as follows:

Jade: The name of the crafts of jadeite with various colors and practical values. In ancient times, it was the name of a bird.

翡: The abbreviation of the red part of jadeite is called “Red Cui” in the south of China, and the bird of red feather in ancient times.

Cui: The abbreviation of the green part of jadeite is called “green” for the general varieties in the south of China, and “high green” or “high color” for the high-grade varieties.

Spring: The abbreviation of the purple part of the jade, sometimes called "purple" or "violet jade".

癣: The abbreviation of the black part of the jade, but in practice, the name is different because of the different formation characteristics. For example, the black spot is called “fly scorpion” because of its small size, and the slightly larger is called “black cockroach”. Banded black or black tape and so on.

Leather shell: The weathering layer of the jade outer scorpion, its calling method is also based on color, such as white called "white sand skin", yellow called "yellow sand skin", black called "black sand" or "black" Sand" and so on.

绺: Cracks caused by various natural or artificial causes in jade, such as “big cockroaches”, “bad cockroaches”, “broken cockroaches”, and “passing the sky”.

Texture: In the original stone of the jade, there are general and narrow senses, and the broad sense refers to the available parts of the jade stone, including the colored and colorless parts. In the narrow sense, it means the colorless part or the "ground" or "bottom". But for jewelry or accessories, there is no wide or narrow distinction.

Cui Xing: The unique symbol of jade is called "Fly Fin" in the southern part of China. It is a fibrous, flaky or star-shaped flash structure characteristic of fine crystal grains in jadeite. It is also a key feature and main basis for identifying jadeite.

Moisture: The transparency of jade, such as "six water," "eight water," "very water," etc., describes the level of transparency.

Seed head: refers to the tender and old texture of jadeite.

Shade: The adjective of the color of jade, that is, the color is better, the color is lower, but the actual should be determined according to its situation.

Huayun: The color of the jade is uniform or even, evenly distributed, and the unevenness is the flower (dispersion).

Spiritual death: For transparency, the transparent is the spirit, and the opaque is the death.

True and evil: bright colors, pure people are positive, color is dark and stagnation or with eclipse is evil.

Run: The terminology of the jade texture is better.

Wood: The terminology of the jade texture is not good.

Qiao: The abbreviated name of the emerald green beauty and beauty.

Yan: The abbreviation of the emerald green color part, which describes the gorgeous, thick, delicious, watery meaning.

Fresh: The emerald color is bright, colorful and delicious.

The jade products we have seen on weekdays include "old decorations" and "time decorations". The so-called "old ornaments" refers to the "official ornaments" before the end of the Qing Dynasty and the jewelry of the nobles, such as the scorpion, the finger, the hat, the smoke pot, the dragon hook, the pearl, the fan pendant, the other son, the brand and so on. The so-called "time decoration" refers to ornaments that have been popular in the society since the late Qing Dynasty, such as rings, chicken hearts, milk pendants, shops, horseshoes, earrings, necklaces, etc.

The value of high-quality jade can compete with the famous "emerald gem" and "cat eye gem". Jade is one of the important jewels of China's export trade and is very popular among foreign businessmen.

Identification of agate

1) Color: The true agate color is bright and bright, and the color and light of the fake agate are both poor. The contrast between the two is more obvious. The natural red agate is well-defined in color and the strips are very visible. Careful observation reveals densely arranged small red spots at the red strips. Most of the fake agate smokers made of stone imitation have a petal-shaped pattern at the bottom, which is a "chrysanthemum bottom"; while the dyed blue agate is bright and uniform, giving a false feeling.

2) Texture: The fake agate is mostly imitation of stone, which is softer than the true agate. The jade can be traced on the fake agate, but the real thing can not be drawn. On the surface, there are few flaws in the real agate, and there are more inferior qualities.

3) Process quality: The production process of high quality high agate is strict and advanced, so the surface brightness is good, the setting is firm, the circumference is positive, no scratches or cracks.

4) Level: Water agate is the most precious variety in agate, characterized by a closed cavity in the agate containing water.

5) Transparency: True agate transparency is not as good as synthetic, slightly chaotic, and some can see natural water lines or “clouds”, while synthetic agate has good transparency and is as transparent as glass balls.

6) Weight: True agate jewelry is heavier than synthetic agate jewelry.

7) Temperature: True agate is warm in winter and cool in summer, while artificial agate changes with the outside temperature. It also becomes hot when it is hot, and it cools when it is cool. How to choose agate jewelry? First, choose the color according to your favorite. Red agate jewelry is the most expensive. If you choose agate necklace, you should pay attention to the color of each bead. There is no mottle, the size of the beads should be appropriate, and the finish should be good. Then, lift the necklace to see if it is vertical, and whether each bead is hanging on a line. If the necklace is bent, it means that some of the beads are biased and the processing technique is rough.

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