gemstone

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

在切割大多数的多向性时（如堇青、坦桑、紫锂辉等），通常匠会尽量缩小多向性并最大化地将某一显出来。

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

发光是近期由我国的科学工作者依靠现代科学技术研制出的“现代夜明珠”,在界引起强烈反响。