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 strongest natural material ever known has been found... in the teeth of a tiny shellfish. Scientists, who made the discovery while examining limpets, say the substance could revolutionise industrial engineering. Researchers at the University of Portsmouth believe it is even stronger than the silk spiders use to make webs, until now thought weight for weight to be the worldâs toughest biological material.