金刚石是自然界中最硬的物质,科学家把它的硬度定为最高--10,所以钻石被誉为“硬度之王”,加上它璀璨的光芒和极其稀有,钻石又被称为“宝石之王”。它的硬度是刚玉的140倍,超过石英的1100倍,的确硬得无与伦比。这里说的金刚石硬度特别大,是指它抵抗外力刻划的能力强; Diamond is the hardest material in nature, scientists set its hardness to the highest - 10, so diamonds known as the “king of hardness”, coupled with its bright light and extremely rare, diamonds are also known as “precious stones king”. Its hardness is 140 times that of corundum, more than 1100 times that of quartz, and it is indeed hard to be unequaled. Diamond hardness here is particularly large, it refers to the ability to resist external force scored;