To the effect of impurities during crystallization between spheres

Abstract

Using the hemispheres of potassium alum that I had and the corresponding depressions in a large crystal, I wanted to test how impurities in the solution, which do not have a decomposing effect on the substance contained in the solution, affect the same crystallization. A likely conclusion is the formation of faces, although of poor quality, with more complex symbols on spherical surfaces, but of such small magnitude that reflexes are generally imperceptible, and only some of them begin to become perceptible, due to impurities that improve crystallization.