Physical Methods for Studying Jades of Different Colors

Abstract

Introduction. The article presents an analysis of the various applications of crystals, describes the historical and cultural foundations of using mineral raw materials for various purposes, including medical ones. It is shown that a special place in this list is occupied by jade (nephrite), which is one of the most common minerals used in therapeutic equipment. Moreover, the cost of this equipment is determined by the color of the material used. Therefore, the task is to conduct a study of jade of different colors by physical methods. Materials and Methods. For the study samples of yellow jade, green jade, black jade, and white jade were made; samples of different colors of jades were made according to the “thin section” type and had a flat surface. The phase analysis of jades was carried out on the DRON-1 diffractometer. The diffraction pattern was recorded using a scintillation counter with amplitude discrimination. The diffraction pattern was recorded sequentially as the sample and counter, which were located on the GUR-5 goniometer, rotated. The report of rotation angles was made with an error of up to 0.005º. Results. The article presents the results of studying the chemical analysis of jades of different colors and a diffractogram of yellow, green, black and white jades. The authors also provide a table for deciphering the interplanar distances and the intensities of the main lines of the studied jade samples. Discussion and Conclusion. The studies have shown that the studied samples are tremolites by chemical composition. The chemical analysis of black jade showed that because of an increase in ferrous iron and a decrease in the proportion of magnesium, a transition to actinolite is noted. A decrease in fluorine content by an order of magnitude is also observed in the black jade sample.The conducted studies offer new possibilities for expanding the general concepts of creating a healthy environment, where all events are connected in a single logical chain. The presented material gives the opportunity to add research from the fields of chemistry, biology, and medicine to the logical chain.