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色性类(青、坦桑、紫锂辉),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。
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Sapphire, for instance, is often pleochroic.
如,蓝宝石常常具有多性。
So pleochroic crystals seem to change color as you move your head, or rotate them in your hand.
所以当你动一动头,者在手中转动晶体,具有多性的晶体看上去在变换颜。
Not all non-cubic gems are pleochroic, and even when they are, the color change isn't always noticeable to our eyes.
并不是所有非等轴晶的宝石都具有多性,并且即便它们具有这一性质,它们颜的改变也不一定可见。
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