CRYSTAL FOR DUMMIES

Crystal for Dummies

轴性、光性:一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的,其黑十字臂未达中心,形成中空的图案,俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。Crystals are wonderful rock formations which have astonished humans for A huge number of decades. They can be useful for a lot o

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