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一、测定方法非均质矿物在反射光下具有使偏光振动面发生非均性旋转的性质.即垂直入射的直线偏光经非均质矿物光片垂直反射后,反射偏光的振动面向非均质矿物较大主反射率轴方向旋转一定的角度.1950年美国学者E·N·卡梅伦和L·H·格林把非均质吸收性矿物的某些结晶学要素(晶体延长习性、解理、双晶等)和这种非均性旋转联系起来,规定结晶学要素方向的反射力大于其垂直方向反射力者为正旋性(图1),反之为负旋性(图2).为了更加实用.可以考虑规定离结晶学要素最近之消光位方向,的反射力大于其垂
First, the determination of heterogeneous minerals in the reflected light with the polarization vibration of non-uniform rotation of the property that the vertical incidence of linearly polarized light by heterogeneous mineral light film after the vertical reflection, the reflected polarization of the vibration-oriented non-homogeneous In the 1950s, American scholar E.N. Cameron and L.H. Greene converted some of the crystallographic elements of heterogeneous absorbent minerals (crystal elongation behavior, cleavage , Twins, etc.) and this non-uniform rotation, the provisions of the crystallographic elements of the direction of the reflective force is greater than the vertical direction of its reflection was positive rotation (Figure 1), on the contrary negative spin (Figure 2) More practical.It can be considered to specify the crystallographic elements of the most recent extinction bit direction, the reflection is greater than its vertical