New Step by Step Map For Crystal
New Step by Step Map For Crystal
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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。
23Sometimes, on the other hand, the crystal kind of the silicate inclusions is observed to resemble additional carefully The interior composition of diamond than that of other silicate minerals.然而,有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
一般而言,紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅,颜色较深的为A级,稍浅的为B级。一般颜色较深的价格高,但要以不深暗为标准。颜色包括两种,一种是水晶本身的颜色,另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正,分布要均匀,不能太深或太浅,如澳州玉、蓝玉髓、紫晶、黄水晶,其价格就高。无色的水晶内含包裹体的颜色艳丽,其价格也高,如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。
Fig. 7: A template-directed strategy can Regulate the placement of making blocks over a surface in the formation of sophisticated structures.
断口:贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂,破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
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Increase to word record Incorporate to phrase list [ C/U ] transparent rock that appears like ice, or a piece of it
1A crystal chandelier lit the home.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
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广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
say cheese a thing that someone who is taking a photograph of you informs you to mention so that your mouth will make The form of the smile
Fig. one: Schematic of crystal formation from setting up blocks made up of a particle core along with a shell of DNA ligands connected to your particle floor.
The construction with the sodium atoms on your own, or even the chlorine atoms alone, is fcc and defines the unit mobile. The sodium chloride click here framework So is made up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) relies around the bcc construction; each other atom is cesium or chlorine. In such cases, the device cell is often a dice. The 3rd vital framework for AB
对于紫水晶黄水晶这样的单色水晶,通常要观察它的二色性,即使是最顶级的紫水晶黄水晶也是有色差的,通过这个方法可以鉴别是否加色。