The thermal conductivity of a gemstone refers to the property of an object that can conduct heat. A large number of molecules, atoms, ions or free electrons that make up a substance collide with each other, so that heat is transferred from the higher temperature part to the lower temperature part. In general, materials with […]
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The color of a gem is caused by the selective absorption of visible light of different wavelengths by the gem, and the unabsorbed light mixes to form the body color of the gem. Absorption spectrum refers to the spectrum composed of a series of black lines and bands that appear in the visible light spectrum […]
The most romantic ring-Paris kiss In gemology, the concept of “refractive index” is often mentioned, and in some places it is called “refractive index”. The refractive index is an important parameter reflecting the optical properties of gems. When light propagates from one medium to another, reflection and refraction occur at the interface between the two […]
Planting wax trees is the first step in forming the jewelry after its modeling is completed. It is to glue the wax film of the jewelry together one by one, like a tree. In the process of planting wax trees, the following issues should be paid attention to. ① When planting wax trees, try to […]
The ability of a gemstone to resist mechanical action such as external pressing, scoring or grinding is called its hardness. The hardness of a gemstone is related to its crystal structure, chemical bond, and chemical composition. The hardness of gemstones can be divided into absolute hardness and relative hardness. The absolute hardness is measured by […]
Magnification inspection refers to the observation of internal features such as inclusions, 구조, 조직, color bands, and stains of jewellery and jade, as well as external features such as original crystal planes, surface scratches, fractures, and open fissures, with the help of magnifying glass, microscope and other instruments. Magnification inspection is an important method in […]
Evaluating the quality of jade is a very important part of understanding jade. 하지만, the quality classification of jadeite is a very difficult task. The industry has not yet reached a consensus and has not formed a unified quality classification plan for jadeite, let alone establish a national standard for jadeite quality classification. 품질 […]
Jadeite occupies a large proportion in China’s jewelry market and is deeply loved by people. In addition to the color, the transparency, 구조, 명쾌함, carving, and size of jadeite also have a great influence on its value. Brightness-the transparency of jadeite is also called “물 머리”. Most jadeites are translucent or opaque, and a few […]
At the end of the 19th century, scientists have successfully produced artificial emeralds using the flux method. They put the raw material of beryl, adding a small amount of coloring agent chromium oxide and flux (such as lithium molybdate and lithium barium oxide), 등., into a large crucible made of platinum, heated to 800°C, smelted […]
The color of aquamarine is as blue as sea water, and its color agent is iron. Among the various colors of aquamarine, the most popular are the dark blue and sky blue gems. Aquamarine is a symbol of happiness and longevity. In the Middle Ages, people had the foresight for those who wore aquamarine; 기타 […]