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 […]
Kategori Arkiver: Smykker nyheder
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, structure, texture, 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. Imidlertid, 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. The quality […]
Jadeite occupies a large proportion in China’s jewelry market and is deeply loved by people. In addition to the color, the transparency, structure, klarhed, carving, and size of jadeite also have a great influence on its value. Brightness-the transparency of jadeite is also called “water head”. 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), osv., 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; andre […]
Brazil: The deposits are distributed in all regions of the country. Ural region of Russia: produces high-quality aquamarine. Others: Mozambigue in Africa, Queensland in Australia, Burma, Kina, Indien, Kenya, Madagaskar, Namibia, Nigeria , Zambia (Zambia), Srilanka (Srilanka), Tanzania (Tanzania) and the United States (U.S.A.) and other places also produce. The best method for identification: Natural […]
In addition to the green that does not have emeralds and the blue of aquamarine, natural noble beryl exists in the earth’s crust in various other colors, especially gold-yellow, yellow-green, gul, lyserød, wine red and colorless colors. For common. Natural precious beryl has a glassy luster, sometimes showing a cat-eye effect. It is very sensitive […]