Product crystal size is a very important quality parameter that customers look for when buying refractory raw materials. Material is graded according to chemical and physical properties. Crystal size is an important physical property.
Samples are brought to the laboratory, prepared for analysis, embedded in two pack resin, and polished to sub-micron levels. This allows the sample to be presented for measurement of crystal size. The sample is measured with a microscope at a magnification of 20. The operator measures in excess of 1000 points. The software then takes all of this data and gives the operator the sample crystal size and other important statistical information.