Sapphire has a hardness of 9 on the Mohs scale and is also extremely tough.
蓝宝石具有硬度大、9月的层数也非常强硬。
Aggregate hardness can be measured using the Mohs hardness Scratch Test.
总计硬度可利用层数硬度划痕测试。
Human teeth are harder than gold but softer than pyrite, according to the Mohs Hardness Scale, which categorizes how easily minerals scratch.
根据莫氏硬度表，人类牙齿的硬度比黄金大但比黄铁矿小。
Diamonds are a 10 on the MOHS Hardness Scale which means that they are not only the hardest mineral, but they are actually the hardest substance on earth.
钻石，是对莫氏硬度标度10，这意味着他们不仅是最困难的矿物质，但它们实际上是地球上最困难的实质内容。
Diamonds are a 10 on the MOHS Hardness Scale which means that they are not only the hardest mineral, but they are actually the hardest substance on earth.
钻石，是对莫氏硬度标度10，这意味着他们不仅是最困难的矿物质，但它们实际上是地球上最困难的实质内容。
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