Opaque Quartz Crucible for Chemical Processing Opaque quartz crucibles are made by arc-melting of high purity quartz sands. They are used by semiconductor and solar industries for growing single crystal from silicon melt at about 1450°C. Fused quartz, due to its high purity and high temperature properties, is the ideal material for such process. The opaque quartz crucibles can also be used in many industrial applications such as chemical processing and powder calcinations because of its high purity and excellent chemical resistance. Call for any custom production request Please feel free contact me: chinamerry315 AT hotmail DOC com