What Is Holy Basil? Holy basil, sometimes called Thai basil tulsi, is an herb from the same family as the basil often used in cooking. Although it's used in Ayurvedic medicine, clinical studies backing up any of the traditional uses for this herb are limited.
Diamond is an allotrope of carbon. It is the hardest known natural material and the third-hardest known material after aggregated diamond nanorods and ultrahard fullerite. Its hardness and high dispersion of light make it useful for industrial applications and jewelry.
Scientists discover hardest natural material ever found in tiny shellfish - and it could revolutionise industrial engineering. 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.