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上海枫泾古镇正门_20240824 根据上文，关于“莫氏硬度 9”和“9H 硬度”的差别如下：
莫氏硬度是指矿物能耐外界刮、划、磨的能力，指甲莫氏硬度为2.5，美工刀的莫氏硬度为4，玻璃的硬度莫氏硬度大约为5.5~6左右，以及周围灰尘的莫氏硬度为7。蓝宝石的莫氏硬度高达9级。
9H硬度是指可以抵抗9H铅笔硬度的划痕。9H铅笔硬度若换算成莫氏硬度大约是4左右。
所以，莫氏硬度9比9H硬度高，蓝宝石的莫氏硬度9比9H铅笔硬度更高，说明蓝宝石的抗刮能力比9H铅笔硬度更强。简单来说，莫氏硬度越高，抗刮能力越强。
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