Another element occurring in allotropic forms is sulphur, of which many forms have been described.   anvd [Please select]

However, Professor Schleiermacher was a specimen of that noble type of scientific men to whom gold was merely the rare metal Au, and diamonds merely the element C in the scarcest of its manifold allotropic embodiments.   anvd [Please select]

It was clear it was done to disturb the diamond market, and we realised, too late, that the man who had done it was--Colonel Clay, in "another of his manifold allotropic embodiments."   anvd [Please select]