Cesium Alum Crystals
Aluminum in dilute sulfuric acid solution can be detected with cesium sulfate. These
characteristic isotropic crystals,combinations of cubic and octahedal habits, indicate the presence of aluminum. The bright
blue and yellow crystals in this field of view are gypsum crystals, the result of the presence of calcium in this solution.
Transmitted Crossed Polarized Light with Red Plate Compensator
Definition/Function:
Aluminum in dilute sulfuric acid solution can be detected with cesium sulfate. These
characteristic isotropic crystals,combinations of cubic and octahedal habits, indicate
the presence of aluminum. This is a standard micro-chemical test from the HANDBOOK OF
CHEMICAL MICROSCOPY, by Chamot and Mason.
Significance in the Environment:
Characteristic Features:
Associated Particles:
References:
Chamot, Emile Monnin and Clyde Walter Mason, HANDBOOK OF CHEMICAL MICROSCOPY, Volume II, pp. 176-8, 1940.
