Recently, a friend bought a bracelet of Hetian jade (white jade), which he likes very much. He wears it in his hands and can't bear it. It was only a coincidence that she accidentally rubbed the chain on the corner of the metal cabinet while moving, and then she noticed a scratch on the bracelet. She remembers that the hardness of Hetian jade should be much higher than that of ordinary iron. How to wipe it off has a trace. Her first reaction was to buy fakes, so she immediately sent the bracelet to a nearby one. The private quality inspection station did the identification. I did not expect the result of the identification: marble, Hetian jade. Similar like this: This result is even more confusing, and my friends are completely confused. How can two different minerals be written side by side on the identification results of the same sample? So, the friend found a small series, want to know what the sacred bracelet she bought is sacred. After a detailed understanding of Xiaobian, it was concluded that this bracelet should be a translucent petrochemical marble product. In view of the fact that this kind of mineral is very common recently, and has been mixed with Hetian jade in the market, I would like to take this opportunity to tell you about the translucent petrochemical marble in the most popular language. The minerals of the orthodox Hetian jade are called tremolite, and their hardness is higher than that of ordinary iron knives. It is difficult to scratch tremolite with objects common in life. Therefore, the common jasper, white jade and other accessories are often worn for a long time, the surface is still bright and bright, it is difficult to see the scratches. At the same time, the properties of tremolite are relatively stable, generally do not react with chemicals commonly found in life, and are not soluble in some acid-base solutions commonly found in life, so Hetian jade has good durability. A Hetian jade jewelry can survive its time and still maintain its good gemological properties. The picture above is marble The tremolite petrochemical marble refers to a mineral containing a carbonate component in addition to tremolite. Carbonate minerals are a general term for a class of carbonate-containing minerals. For example, the edible alkali in our daily life is processed with sodium carbonate. The commonality of carbonate minerals is low hardness. Most of the sharp tools in daily life can leave permanent marks on the surface; chemical stability is poor, and it will react with most of the acid, such as common in life. Most of the carbonate minerals can be corroded by the use of dilute hydrochloric acid for cleaning, and various detergents and some cosmetics may also have adverse effects on carbonate minerals. In summary, when the tremolite is mixed with carbonate minerals at the same time, its overall hardness, density, durability, chemical stability and other properties will decrease. Therefore, Hetian jade and tremolite petrochemical marble should be regarded as two kinds of minerals strictly because they have great differences in properties. Therefore, Xiaobian believes that twilight petrified marble should not be named and sold as Hetian jade. The translucent petrified marble and Hetian jade (white jade) are very similar in appearance, and it is difficult for ordinary consumers to distinguish. The experienced Hetian jade enthusiasts can make a preliminary distinction by careful observation: 1. Observing the appearance: The flashing petrochemical marble bead string jewelry often produces some powder due to the low hardness in the bead hole, or has the defect worn by the stringing rope, and Hetian jade often does not appear this phenomenon. 2. Observe the internal structure: The interior of the translucent petrified marble is loose, and there will be large dead spots and stone flowers. However, it should be noted that a small part of Hetian jade will have a similar structure inside. 3. Reagent test: This method is suitable for use in the face of large quantities of goods. You can prepare some 5% concentration of dilute hydrochloric acid, find the area where the stone flower and the dead point appear on the sample, drop a few drops of dilute hydrochloric acid and carefully observe it. If a large amount of bubbling is similar to boiling water, you can judge this sample. It is a tremolite petrochemical marble; correspondingly, Hetian jade does not react with dilute hydrochloric acid. The picture above shows Hetian jade The above method is suitable for experienced jade lovers. For the average consumer, the most reliable method is to purchase jewelry with a certificate issued by a formal institution. The formal identification agency will not identify the translucent petrochemical marble as Hetian jade, and some of the under-normal quality inspection stations and parts For the sake of economic benefits, the private quality inspection station will use the various irregular names, remarks, etc., such as the name of the new pit material, the note containing the marble composition, etc., and the flashing petrochemical marble to the Hetian jade, thus Misleading consumers. Above, the left is Hetian jade, the right is the top of the translucent petrified marble, the left is Hetian jade, and the right is the translubrinated marble. Therefore, when consumers purchase Hetian jade (white jade) jewelry, they should ask the merchants for a certificate issued by a formal appraisal agency (such as local provincial inspection and national inspection appraisal department) to avoid accepting the ambiguity issued by various informal quality inspection stations. 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