gemstone

When cutting most pleochroic gemstones (Iolite, Tanzanite, Kunzite etc.), lapidaries typically try to minimize the pleochroism and maximize the single most prominent color.

在切割大多数多向色性时（如堇青、坦桑、紫锂辉等），通常匠会尽量缩小多向色性并最大化地将某一主色凸显出来。

Luminiferous gem is the man made modern night shining jewel developed with modern technology by research workers and caused strong echo in gemstone circle.

发光是近期由我国工作者依靠现技术研制出“现夜明珠”,在界引起强烈反响。