The 5-Second Trick For Crystal

The 5-Second Trick For Crystal

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看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。

①压电效�?在机械力(压力或拉�?作用下，水晶单晶体的两端会产生电荷，其电量相等但符号相反。在工业上，无色、无缺陷、不具双晶的水晶常被用来作压电石英片。

4Without a crystal ball, it's unattainable to state where by we'll be upcoming yr.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》

Most reliable components present in nature exist in polycrystalline kind as opposed to as only one crystal. They are literally made up of millions of grains (compact crystals) packed collectively to fill all House. Just about every specific grain has a distinct orientation than its neighbours. Although extensive-assortment order exists in one grain, within the boundary among grains, the purchasing modifications direction. A normal bit of iron or copper (Cu) is polycrystalline.

You will discover many alternative crystals determined by geometric constructions, crystal growth, and product. There is usually preparations of hexagonal carbon atoms or amethyst which makes hexagonal pyramid buildings.

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光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。

11I thoroughly opened the bundle and located a crystal bell within.我小心地打开包裹，发现里面有一个水晶钟。

Q.4. Exactly what is the difference between atomic Crystal structure and crystal framework? Ans. The primary distinction between atomic framework and crystal framework lies within their definitions: atomic structure refers to how atoms are arranged inside of a single molecule or simply a cluster of molecules, While crystal framework issues the particular arrangement of atoms inside of a good material.

22Working from what The usa presently knows about by itself, the bureau's specialists and various demographers offer an irresistible, if clouded, crystal ball amid their visions.

看孔眼：对于缀穿水晶制品（如项链、手链、佛珠），要看孔眼是否平直，孔的粗细是否均匀，有无细小裂纹。孔壁必须清澈透明，无“白痕”。

Fig. one: Schematic of crystal development from making blocks composed of a particle core and also a shell of DNA ligands connected on the particle surface area.

《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”

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。