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硬度在莫氏3~6度之间。石头的硬度在赏识中极为重要。它决定石之自然寿命的长短,可以说,灵壁石是金石合一的长寿之躯。
Mohs hardness of 3 to 6 degrees. The hardness of the stone in the appreciation of the extremely important. It determines the length of the natural life of the stone, it can be said that Lingbi stone is the longevity of stone.