Ruby identification methodRuby is a precious gemstone, and its identification method is an important part of gemstone identification. The following is an introduction to the common methods used in the identification of rubies to help you better understand and recognize rubies.
First of all, the appearance characteristics of the ruby are the first step in identification. A professional gem grader will judge the authenticity of a ruby by looking at its color, transparency, luster and cut with the naked eye. The color of a ruby is usually a vivid red, but there may be some hue variations, such as orange-red, pink, and purple-red. Transparency is also an important indicator, and high-quality rubies are usually bright and transparent. The gloss needs to be full of life, and the cut needs to be neat and without visible cuts or blemishes.
Secondly, the optical properties of ruby are also one of the important bases for identification. A gemmologist uses a microscope to look at the refractive index and scattering power of a ruby to determine its authenticity. Ruby has a high refractive index and can refract light to a certain extent, giving it a unique sparkling effect. Scattering refers to the dispersion of light after passing through ruby, which is also a characteristic of ruby.
In addition, the physical properties of ruby are also one of the important bases for identification. Ruby is an aluminate mineral that has a high hardness (9 for the nine-square grid) and is not susceptible to scratches in hardness tests. In addition, rubies have a higher density, generally at 39-4.About 1g cm. These physical properties can also be compared with the authenticity of the ruby.
Finally, the chemical properties of rubies are also one of the important bases for identification. The chemical composition of ruby is mainly alumina, which may also contain trace amounts of other elements. There are a number of chemical reagents that the appraiser can use to perform chemical tests to determine the composition of the ruby. At the same time, an absorption spectrometer can also be used to detect the spectral signature of rubies, which is one of the most commonly used methods in ruby identification.
Through the above ruby identification methods, we can preliminarily judge the authenticity and quality level of rubies. Of course, the accuracy of the identification also requires a combination of expertise and experience, preferably by a professionally trained gemmologist. Hopefully, the above content will help you better understand the ruby identification process and improve your knowledge of gem identification.