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- ...
Chinaâs historic jade is nephrite, famous as the toughest stone on Earth and known for its rich resinous texture when polished. Nephrite is the jade that B.C. has in abundance. Its chemical structure is completely different from jadeite, found primarily in Myanmar (Burma).