In the Hindu religious tradition, the tulsi, or holy basil, plant serves both as an important symbol and also as a popular medicinal remedy.
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 nitridâ¦e at 18% stronger then diamonds they are both extreamly rare natural minerals sources http://www.newscientist.com/article/dn16610-diamond-no-longer-natures- ...
About Tooth Enamel. After diamonds, enamel is the second hardest compound in the world. Itâs no surprise, then, that tooth enamel is the number one strongest substance in your entire body. Consisting primarily of calcium and phosphate mineral crystals, tooth enamel is highly mineralized. This makes your teeth even stronger than your bones.