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- ...
Diamond is the hardest material on the earth. It can cut everything but it can't be cut by any other except Diamond. It is used to drill the mountains. You may have several times seen a knife by which shopkeeper used to cut the glass. There is a small amount of Diamond at the tip of knife. It is the allotrope of Carbon atom. In India it is called Bajra which means : the hardest material. This is the stone which attracts women most.