Its low temperature form is rhombohedral with an elongation along (111).
它的低温形态是沿着111伸长的菱面体。
Melting experiments validate that the content of high temperature form water is the most important factor influencing the quality of the natural quartz.
熔制实验证明：高温水的含量是影响天然石英质量的最主要因素。
Melting experiments validate that the content of high temperature form water is the most important factor influencing the quality of the natural quartz.
熔制实验证明：高温水的含量是影响天然石英质量的最主要因素。
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