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- ...
It is true that diamonds are extremely rare and precious. And it is true that diamonds are the hardest known natural substance, giving them durability for the ages. But it is their ability to dazzle the eye with brilliance and fire that makes diamonds the ultimate gemstone.