On the structure of Perovskite from the Burgumer Alp, Pfitschthal, Tyrol

Abstract

The question of the system to which perovskite should be referred, and the explanation of the discrepancy between its form and optical-properties, have been the subject of much discussion among crystallograpbers ever since the discovery by Des Cloizeaux, in 1858, of the double refraction of crystals of calciam titanate from Zermatt, having the same composition as the crystals of cubic form from the Ural Mountains, to which the name perovskite had been given by G. Rose in 1889.