NOT KNOWN DETAILS ABOUT CRYSTAL

Not known Details About Crystal

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 lovely rock formations which have amazed human beings for A large number of yrs. They can be employed for quite a f

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