pleochroism

It is firstly reported in the paper that the superconduction crystals have evident pleochroism .

首次报道了Bi系超导晶体具有明显的多色性。

Tourmaline is one of the most important semiprecious stones in the world , with particular cutting features such as undeveloped cleavage and high tenacity , rich in color , strong pleochroism , special optical effect of asterism and cat ' eye .

碧玺是宝石世界中最重要的中档宝石，具有独特的加工性质，如解理不发育、韧性强、颜色丰富多彩、多色性强、具有星光和猫眼特殊光学效应等。

Pleochroism of a crystal so that it exhibits three different colors when viewed from three different directions .

某些晶体在沿三种不同的方向观看时，而呈现三种不同的颜色的现象。

Pleochroism and pleochroism 's formation mechanism of gem quality corundum

刚玉族宝石的多色性及形成机理

Distinct pleochroism : Np green , Nm brownish yellow and Ng yellowish green ;

光学性质：高正突起，具有明显的多色性：Np绿色，Nm棕黄色，Ng黄绿色。