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- ...
The hardest natural mineral in the world is lonsdaleite, a rare mineral made of carbon atoms. This mineral can withstand up to 58 percent more stress than diamond, according to a report by Jessica... The hardest natural mineral in the world is lonsdaleite, a rare mineral made of carbon atoms.