[China Glass Network] At present, many watch brands claim that the mirror is made of sapphire mirror glass. Consumers are easily confused by the beautiful appearance and clever publicity. I know that the concept of sapphire glass is very hot and the value is very high. So how do you tell if the watch mirror is sapphire mirror glass? Is there a way to use simple tools without easy identification?
What is sapphire glass?
Before answering this question, we need to know what sapphire glass is - sapphire glass (SAPPHIRE CRYSTAL) generally refers to synthetic sapphire, which is very different from the jewels that people usually understand - natural sapphire. Generally used in the manufacture of watch mirrors. Sapphire glass is made of fine alumina powder and is formed into a sapphire crystal block in a furnace with a high temperature of Celsius. After several steps, the hardness is second only to diamond, which is equivalent to seven times that of steel. Sapphire glass ≠natural sapphire~
Since sapphire glass is so hard, can it be ground on the ground or ordinary glass?
No. Because the ground or ordinary glass may contain diamond or diamond powder and sundries, if it touches, it will sapphire crystal; the other case is that it is softer than sapphire crystal and sticks to the sapphire crystal, causing the sapphire crystal to be Flowering, this is an imaginary stroke, which can be polished by the master.
To identify whether the mirror is sapphire, you only need to identify whether the material is sapphire crystal. The simple and effective methods are as follows:
Method One: Appearance identification method is to look at identity <br> <br> watch: If it is regular brand watches, sapphire glass usually printed on the back cover of the watch dial or above, expressed in English SAPPHIRE or SapphireCrystal, or with a diamond-shaped flag Said.
Method 2: Scratch method
Use your nails to scratch the surface. If there is a blockage, it means that the material of the mirror is ordinary crystal. If the hand feels smooth and no resistance is sapphire; or you can use a needle-like sharp metal object to draw The edge of the glass is less than the eye, it feels very hard, there is a feeling of metal drifting, the glass is not scratched, it should be sapphire glass.
Method three: a drop of water on the table mirror <br> <br> drip method, drops of water diffusion in the table indicates that the material is ordinary crystal mirror, if the drops are not diffused sapphire.
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