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Mineral glass

Watch glass

With a 5 in the Mohs hardness scale mineral glass is located between acrylic glass and sapphire crystal. Mineral glass with hardened mineral surface and 6-7 Mohs is nevertheless harder than steel. The rupture safety of mineral glass is inferior to both the acrylic glass and the sapphire crystal.

Today high quality watches should fundamentally be equipped with sapphire crystal.

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mineral_glass.txt · Last modified: 11.10.2021 17:14 (external edit)

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