Diamond. It's carbon packed extremely tightly together, which makes it pretty much unbreakable. This is also part of the reason why diamonds are so highly valued: no one wants their diamond ring to fall to the ground and shatter into a million pieces.
Enamal is tha hardest part of human body..
Off the top off my head, I'd have to say that it is a diamond - but there are others with more knowledge than myself that roam this site.
Tooth enamel is the hardest substance in the human body because it was evolved or chosen based on what it has to do. Humans (and a lot of other animals) require it to cover teeth through a whole lifetime of biting and/or chewing food.
The hardest substance in the human body is the enamel, which is the outermost layer of the teeth. Enamel is mainly composed of minerals like hydroxyapatite, making it stronger than bone but also susceptible to wear and damage from factors like acidic foods or poor dental hygiene.
Hardest compont of the human body is the Enamel of the tooth (above gum line - gingivi) with approximately 95% calcium concentration The Dentin of the tooth (within enamel) has approximately 80% concentration of calcium
Diamond
No, diamond is the hardest known natural substance in the world.
Diamond. Curious, perhaps, that the hardest substance known can be shattered - but not scratched or cut.
Diamonds are the hardest known substance
The hardest naturally occurring substance is called diamond. It is a form of carbon.
Diamonds are the HARDEST natural material. Mankind has created harder artificial materials.
Diamond use to be the hardest known natural substance now it is the mineral lonsdaleite at 58% stronger then diamond is the first the second hardest is wurtzite boron nitride at 18% stronger then diamonds they are both extreamly rare natural minerals sources http://www.newscientist.com/article/dn16610-diamond-no-longer-natures-hardest-material.html
A diamond
Diamond
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
Diamond is the hardest known natural substance, with a score of 10 on the Mohs scale of mineral hardness. It is made up of carbon atoms arranged in a crystal lattice structure, giving it its exceptional hardness and durability.
It is the hardest NATURAL substance- due to the arrangement of the carbon atoms that make up a diamond. (Thee ARE harder materials, but they are manmade.)