How to identify watch sapphire glass and mineral glass？
1.Water drop, if you drop the water on sapphire glasses, the water will be flock together just like on lotus leaf, but the water will be divergent on the mineral glass.
2.Color, the color of sapphire is a little pink or milk white, and mineral glass often have blue color.
3.Touch and feel, you will feel icy if touch the sapphire, and it is not for mineral.
4.You also can use professional machine to measure the density, lusciousness, refraction, hardness and some other technical information.
The sapphire mirror is more durable and scratch resistant than mineral glass.
The wear resistance is worse than sapphire, but the impact resistance is much stronger than sapphire. It's not easy to understand in this way. Mineral glass is resistant to falling from a high place, and sapphire mirrors are resistant to scratches on the mirror surface, which is wear-resistant and takes what you need.
Sapphire glass (SAPPHIRE CRYSTAL) generally refers to artificially synthesized sapphire, which is very different from the commonly understood jewelry - natural sapphire, and is generally used for the manufacturing of watch mirrors. It is wear-resistant material along with tungsten titanium alloy and high-tech ceramics. Although these materials can resist wear and tear, they cannot withstand strong impacts, and some substances with the same or higher hardness (such as grinding stones, sandpaper, nail clippers, granite surfaces, concrete walls and floors, etc.) may scratch the surface of these materials. Sapphire glass is a general term for corundum gems of other colors except red Ruby, and the main component is aluminum oxide (AlO). Sapphire glass refers to artificially synthesized sapphires, which can be easily and cheaply produced in the laboratory to produce gemstone grade sapphires with the same chemical composition and physical properties as natural sapphires.
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