Pleochroism: distinct in strong colored gem varieties, kunzite is violet-purple/colorless and hiddenite is green to blue-green/colorless to pale green.

• 晶体多样色性：不同类的锂辉石具有明显的强烈颜色，紫锂辉石具有紫罗兰色到紫色或者无色，希登石是绿色到蓝绿色或者无色到淡绿色；