How are the types of nephrite divided into categories? What are the types of nephrite?

Hello! The common Hetian, Kunlun, and Dushan jade in the Chinese market all belong to nephrite, and jadeite is what we call jadeite, so these are very well divided. As for what you say below, let me say it to you!

Sheep fat jade is a grade in Hetian jade, the color is like sheep fat is called sheep fat jade, but it is still Hetian jade, the place name is known to be a general name for it, in the next will be according to its nature, color, in the name, take Qinghai jade as an example! There is a kind of jade among the varieties of Qinghai jade, which is warm and moist in color and green, which is comparable to jadeite, and people also call it, Wulancui. In fact, it is also Qinghai jade, are you satisfied with mine?

Hope it helps, good luck! Oh.

Nephrite only refers to Hetian jade in a narrow sense, and there are more than ten kinds of nephrite jade in a broad sense, such as Xiuyan jade, Nanyang jade, and Jiuquan jade. Nephrite jade mainly includes white jade, topaz, purple jade, black jade, jasper, green jade, red jade and so on. Among them, topaz is as good as chicken fat, purple jade is usually light pink, black jade is actually jade with many black spots on jasper, and green jade is really dull and blue white jade.

Usually white jade is best. Sheep fat jade is the color of jade, and Hetian jade and Qinghai jade are the origin of jade! The meaning is different.

Nephrite jade is called true jade, such as white jade, green jade, white jade, jasper and black jade, etc., they all have a waxy luster, pure milky white, from the jade of the past dynasties, our country uses jade to nephrite jade, ancient nephrite jade in our country is called traditional jade. The common colors of nephrite are white, gray-white, green, dark green, yellow, black and other colors, most of them are opaque, some are translucent, and have a vitreous luster. The best of the white jade is as white as mutton fat, which is called mutton fat jade.

Green jade is grayish white to bluish-white, and some people currently refer to gray-white green jade as green and white jade. Jasper is green or dark green, sometimes with black dirty spots, which are caused by impurities such as chrome spinel minerals. When it contains many impurities and is black, it is a precious black jade.

Topaz is also a more prized variety. There is a yellow skin shell of sugar water in the green jade, which is called "sugar jade" by existing people, and some people call it "pink jade" if it is white and slightly pink, and "tiger skin jade" when it is colored by tiger skin.

Nephrite jade, in fact, is what is traditionally called jade in China There are many kinds However, let's answer your question In fact, Hetian jade and Qinghai jade are the names of a class of jade Mutton fat, not a classification on a par with them But a very small type of Hetian jade, However, for people now, it is very dumbfounded to mention the current situation of mutton fat jade Mutton fat jade is very rare, even in ancient feudal dynasties, mutton fat jade can only be collected by the royal family In the current market, it is called mutton fat, which may only be true in one thousand.

The main types of nephrite jade are as follows:

Mutton fat white jade is a high-quality Hetian white jade, its color is fat white or relatively white, can be slightly light cyan, milky yellow, etc., the texture is delicate and moisturizing, good oiliness, there can be a small amount of impurities such as stone flowers (generally less than 10%), sugar color is less than 30%.

White jade: all kinds of nephrite jade, mainly white, often slightly tinged with gray-green, light green, brownish yellow, flesh red or purple gray and other hues, with a delicate texture or above fine, and a sugar color of less than 30%.

Sugar white jade: a transitional variety of sugar jade and white jade, of which the sugar color part accounts for 30-85%.

Sugar white jade-mutton fat white jade: a transitional variety between sugar white jade and mutton fat white jade, in which the sugar color part accounts for 30-85%.

Qingbai Jade - Qingbai Jade: Gray-green, blue-gray, yellow-green and other light-to-medium hue varieties, between white jade and green jade.

Green and white jade-white jade: When it is difficult to demarcate the boundary between green and white jade, or when there are two colors on the same piece of jade, the transitional method can be used to describe the name.

Sugar green and white jade: green and white jade with a lot of sugar color, the transitional variety between sugar jade and green and white jade, of which the sugar color part accounts for 30-85%.

Green Jade - Green.

Jade: Medium-dark varieties such as gray-green and blue-gray, with occasional gray-blue tones, and only shades of color differ from blue-white jade. It should be noted that the difference between dark gray-green sapphire and jasper.

Sugar green jade: green jade with a lot of sugar color, the transition variety between sugar jade and green jade, of which the sugar color part accounts for 30-85%.

Jade: Turquoise - light emerald green variety, occasionally found in some origins, can also be directly named after green jade.

Smoky jade: smoky gray, gray-purple varieties, occasionally seen in some origins, can also be directly named after green jade, dark varieties should pay attention to the difference with black jade.

Topaz – Yellow.

Jade: light to medium varieties of different yellow tones, often greenish-yellow, beige, often with gray, green and other hues, in the specific identification should pay attention to the difference with light brownish yellow sugar jade.

Moyu – Ink.

Jade: gray-black-black nephrite, the color-causing factor is because it contains a certain amount of graphite inclusions, and the difference from green-black jasper should be paid attention to in identification. Due to the different graphite content and uneven distribution of black shades, the naming method of transition varieties is the same as that mentioned above.

Sugar Jade – Sugar.

Jade: Nephrite jade, which is formed due to primary or secondary action, is reddish-brown, yellow-brown, black-brown and other hues by iron oxide and manganese, and can be called sugar jade when the sugar color part is 85%. However, if the original jade species can be observed, it can also be named according to the name of the original jade species.

Jasper – Jasper.

Jade: turquoise, dark green, dark green, greenish-black nephrite. It is divided into two kinds, one of which is produced in the contact zone of acid ** into the rock mass, which is purer and more delicate; The other is produced in the contact zone of ultramafic rock mass, which has many impurities and often contains black mineral inclusions.

Even though jasper is close to black, its flakes are still deep in bright light.

Amphibole and actinolite nephrite, nephrite was once named "Chinese jade" by chemists in the former Soviet Union. Most of nephrite is not considered jade by international standards, but is a mineral of other kinds. But in a few countries, such as China, they are still traded as a category of jade.

According to the color of nephrite jade, there are also several subspecies: pure white lanolin jade with an oily luster; White jade, green and white jade, green jade, jasper, topaz and black jade, as well as rarer sugar jade.

Which are nephrite:

Nephrite is a natural jade with a hardness lower than that of Burmese jadeite, and refers to some silicate minerals in the amphibole (such as tremolite, actinolite and other series of minerals) with gemstone value.

Nephrite comes in many varieties and colors, but all have an oily luster. Hotan, Xinjiang, China, is an important source of nephrite, where nephrite is known as it"Hetian jade"。

Which are jadeite:

It is a geological name, and the composition is sodium aluminum silicate. Hardness: 7; Specific gravity:; Refractive index:; Birefringence:. Jadeite is commonly known as jadeite, but in fact jadeite is only one type of jadeite.

Jade is more common, but both are tough, fine-grained rocks that lend themselves to carving. Jadeite is composed of pyroxene crystals with an interlocking grain structure and comes in a wide range of colors, including green, lavender, white, pink, zongzi, red, blue, black, orange, and yellow. The most precious imperial green, a rich dark green color due to the presence of chromium.

When jadeite is polished, it usually has a dimple-like appearance.

Classification of jade: According to the research of the Asian Gem Association (GIG), jade is divided into nephrite and jadeite. Nephrite is a traditional Chinese jade material, and the name of jade comes from nephrite, because the jade produced best in the Hotan region of Xinjiang is the best, and people often call nephrite "Hetian jade".

Nephrite jade is generally opaque or translucent in its hardness, and is divided into the following categories according to its color: white jade, topaz, green jade, (green and white jade), jasper, black jade, flower jade, and sugar jade. Jadeite refers to jadeite that is found in Myanmar.

Whether it is nephrite or jadeite, their texture is very hard and the color is very bright, so they are known as the "king of stones". Jade is already worth a lot of money, and after being processed and carved by skilled craftsmen, it becomes a priceless treasure. With the development of the times, jade culture has gradually formed.

In a broad sense, jade also includes colored stones, that is, the so-called fake jade, including Han white jade, Beijing white jade, etc. In addition, jade in a broad sense also includes diamonds, agate, crystal, amber, turquoise, coral, pearls and other gemstones.

What is the difference between jadeite and nephrite.

As the name suggests, jadeite is a jade with relatively high hardness, and jadeite is the name of a mineral, commonly known as jadeite, but jadeite is only one of the jadeite. In addition to jadeite, there is also nephrite, which is often referred to as white jade and Hetian jade.

Jadeite refers to all mineral aggregates of fibrous nanoaluminosilicate in the pyroxene family of different qualities (grades) with color. The three main substances constituting jadeite are SiO2, AI2O3 and Na2O, and their theoretical content values are: SiO2; ai2o3 is ; Na2O is.

Hardness of jadeite:; Relative density: left and right; Refractive index:;

The toughness is very strong, the crushing surface can be, and the crushing toughness is.

Nephrite jade usually refers to some jade species in China, including: Hetian jade, Xiuyu, Dushan jade, Lantian jade, etc., among which Hetian jade is the best, mainly produced in Hotan, Xinjiang, and is named after us, with a long history and the best quality. The minerals belong to tremolite, actinolite series, the main components are a dense and tough variety of tremolite, specific gravity, hardness, refractive index:

The color is white, green, yellow, red, black, etc., which belongs to the silicate class, so the chemical property is stable.

What is the difference between jadeite and nephrite.

1. Narrow sense: from a scientific point of view, and in line with the traditional jade morality, jade only refers to jadeite (jadeite), nephrite (Hetian jade, etc.);

2. Broad sense: jade is formed by natural geological processes, which is in line with the mineral aggregate with beautiful, scarce and durable characteristics. This is the concept of jade in modern gemology, emphasizing that jade is different from single crystal gemstones is a mineral aggregate, and at the same time emphasizing durability, to be durable, there must be a certain physical hardness, hardness in Mohs 5 or more hard indicators, (some treatises talk about hardness in Mohs 4, but pens think that 5 is appropriate, the hardness of common metal products is generally less than 5, greater than 5 is not easy to scratch) but considering the history of jade, and cultural traditions, serpentine jade (hardness less than 5) also belongs to the generalized jade, generalized jade:

Including narrow jade, quartzite jade ("Jingbai jade", dense jade, aventurine jade), serpentine jade (Xiuyu, Xinyi jade), plagioclase jade (Dushan jade) and so on.

3. General sense: the beauty of jade in culture and stone is also very inclusive. Including jade in the narrow sense, jade in the broad sense, and various gemstones (ruby, sapphire belong to "corundum", topaz minerals are called "topaz"), colored stone (marble is called white marble).

In a broad sense, it refers to jadeite (jadeite), nephrite jade (Hetian jade, etc.); Thousands of agate and thousands of jades depend on what kind of jade you have in your hand.

Nephrite refers to the main component of tremolite jade, but also the traditional jade in China, the most representative nephrite is Hetian jade, its tremolite content is as high as 90%, the best Hetian jade tremolite content even reached 99%. Nephrite jade is characterized by a smooth and soft color, tough and delicate texture, and the overall feeling is warm and subtle. International testing standards divide jade into nephrite and jadeite, and jadeite refers to jade with jadeite as the main component, and the most representative of them is jadeite.

Jadeite is known as the "king of jade", it belongs to the silicate mineral, the structure is very dense, and the appearance presents a sharp glass luster.

Nephrite is referred to as jade, or Hetian jade. The world's nephrite jade is produced in Hotan, Xinjiang, China, with the longest application history and the best quality, so the famous geological and mineralogist Feelsmann of the former Soviet Union called nephrite the national stone of China.

Nephrite is a special aggregate composed of amphibole minerals, which is the main material of ancient jade products in China. The chemical composition of soft and smooth spike jade is magnesium and iron. Mohs hardness 6 to , density to .

The fracture is jagged, the grease is shiny, translucent to opaque, the color is white, green, yellow, black, red and so on, its chemical properties are stable, in addition to hydrofluoric acid, it can resist strong acid and strong alkali. Chinese nephrite jade is mainly produced in the Kunlun Mountains, Tianshan Mountains and Altun Mountains in Xinjiang.