论文部分内容阅读
珍珠的碳酸钙结晶矿物颗粒微小，粒度为１～８ μｍ ，优质珍珠粒度一般为３ μｍ ，因此用一般方法很难鉴别其组构，其结晶轴方位问题始终未得到解决．作者采用Ｘ射线岩组分析研究珍珠内微小矿物的组构，得出结晶Ｃ轴沿径向生长，这为优质珍珠的培育提供了结晶学方向的理论指导．
The pearlescent calcium carbonate crystal minerals are tiny with a particle size of 1 ~ 8 μm. The quality pearls are usually 3 μm in size. Therefore, it is difficult to identify their structure by the general method. The problem of the crystal axis azimuth has not been solved yet. The authors used X-ray lithofacies analysis to study the microstructure of fine minerals in the pearl, and found that the C axis of the crystal grew along the radial direction, which provided the theoretical guidance for the crystallization of high-quality pearl.