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- ...
Hardest substance of the human body is? 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) haâ¦s approximately 80% concentration of calcium.