According to the subject's question, my answer is as follows. The hardest substance in nature is carbon allotrope, and the simple point is diamond, which we all know! Diamonds are the most natural and hard substance we can find on earth. Aliens are two substances with different physical properties formed by the same chemical element due to different structural arrangements, and carbon and diamond are typical representatives! Of course, there is another substance harder than diamond, that is graphene, but it is difficult for us to distinguish whether this substance is synthetic or natural. Graphene is twice as hard as diamond.

These ten minerals are represented by diamond 10, corundum 9, topaz 8, yingshi 7, feldspar 6, apatite 5, fluorite 4, calcite 3, gypsum 2 and talc 1 respectively from hard to soft. In order to facilitate memory, I made a poem from high to low: the hardness of minerals is divided into ten grades, and diamonds and corundum are lower in turn; Topaz, timely, rectangular, phosphorus ash, fluorite, calcite, talc paste. Dear friends, it is hard to believe that the hardest mineral in nature is made of carbon.

Diamond is the hardest of many natural substances found on the earth at present. At the same time, diamonds are not only produced on the earth.

Now, there is also a diamond formation stage in meteorites falling from celestial bodies. Diamonds are commonly called "diamonds". That is, we often say that the original drill. It is a mineral composed of carbon elements, a granular substance composed of elements in nature, and an allotrope of carbon (diamond, graphene, fullerene, carbon nanotubes, stellite, etc. ). Graphite can form synthetic diamond at high temperature and high pressure. It is also a precious gem. China also has the technology to make diamonds. It should be noted that the physical properties of graphite and diamond are completely different. The above is my answer to what is the hardest mineral in nature. I hope it helps you.