当结晶的矿物受力时,内部结构改变,引起光性方位及折光率等变化,表现为光性不均一,产生所谓“波形消光”。石英是最易产生波形消光的常见造岩矿物。自百多年前有偏光显微镜以来,人们早就发现了石英的波形消光现象。但迄今尚无专门文献全面讨论它的种类、成因和地质意义。国内王嘉荫先生生前曾对这方面的零星材料作过一些总 When the crystalline minerals are forced, the internal structure changes, causing changes in the optical orientation and refractive index, showing the optical heterogeneity, resulting in the so-called “wave extinction.” Quartz is the most common rock-forming mineral that exudes waveform extinction. Since more than a hundred years ago with polarizing microscope, people have long found that the quartz wave extinction phenomenon. However, there is no specific literature so far to discuss its type, causes and geological significance. Mr. Wang Jiayin in his lifetime had made some total sporadic materials in this area