Technical progress is accompanied and substantially stimulated not only by quantitative increase in demand for commodities but also by extension of the range of commodities utilized, particularly nonmetallic minerals. Diopside and diopsidites are among the promising mineral commodities that are now beginning to be exploited. Although silicate materials containing diopside have long been used in industry, until recently natural diopside itself was not used directly. In traditional technologies for making electrical ceramics, glass ceramics, cast stone, and other materials, diopside was synthesized from mixture of oxides or mixtures of magnesian rocks with quartz [3, 4, 9].
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