... 2.SGS Certificaton 3. Free Sample 325M Zircon Powder for Ceramic 1. Introduction &Application Zircon powder is ZrSiO4 (for) zirconium silicate minerals ... .2). Used as metallurgy, chemical industry etc of refractories.3). zircon powder in ceramic industry as the main materials, also used ... glass, ceramic glaze color, imitation jewel, fireproofing, polishing materials. 325M Zircon Powder for Ceramic