Sapphire mirror surfaces are highly favored in the watch industry due to their high hardness and excellent optical properties. However, there are many counterfeit and inferior products on the market. Consumers need to master certain skills on how to identify sapphire mirror surfaces when purchasing. As a professional sapphire glass manufacturer, Starlight Sapphire Glass Manufacturer provides you with several common identification methods for sapphire mirror surfaces to help you avoid buying fakes.

I. Hardness Test

Sapphire has extremely high hardness, second only to diamond. When identifying sapphire mirror surfaces, hardness testing is a very effective method. You can gently scratch the mirror surface with an object with lower hardness (such as a steel knife). If there are no scratches on the mirror surface, it can be preliminarily judged that the mirror surface is made of sapphire. In addition, a Mohs hardness tester can be used for more accurate testing.

II. Observation of Transmittance

Sapphire mirror surfaces have excellent light transmittance, being colorless and transparent or with a slight blue tint. You can place the mirror surface under light and observe its light transmission effect. High-quality sapphire mirror surfaces should be clear and transparent without obvious impurities or bubbles. If the mirror surface has poor light transmittance or obvious flaws, it may be a counterfeit.

III. Scratch Resistance

Sapphire mirror surfaces have excellent scratch resistance, which is one of the important reasons for their wide application in high-end watches. During identification, you can gently scratch the mirror surface with objects such as keys and coins. If the mirror surface does not leave any scratches, it can be confirmed that it is a sapphire mirror surface. If the mirror surface is easily scratched, it is likely to be ordinary glass or other materials.

IV. Comparison of Weight and Thickness

Due to the high density of sapphire, sapphire mirror surfaces are usually slightly heavier than ordinary glass mirror surfaces. You can further identify by comparing weight and thickness. In addition, sapphire mirror surfaces are usually relatively thick, which is also an important factor for their wear resistance and durability.

V. Conclusion

Through the above several methods, you can relatively accurately identify the authenticity of sapphire mirror surfaces. Starlight Sapphire Glass Manufacturer reminds you that when purchasing sapphire mirror surfaces, you must choose manufacturers or merchants with reputation guarantees to ensure that you buy genuine products. If you have any questions about sapphire mirror surfaces, welcome to consult us. We will provide you with professional help and services.