How Crystal can Save You Time, Stress, and Money.
How Crystal can Save You Time, Stress, and Money.
Blog Article
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。
③、粗抛光：是将模具压出之毛胚，以金刚石盘直接磨出成品之刻线。④、细抛光：在粗抛光之后，以抛光粉来磨成品至晶莹剔透为止。
10This could be the silicon chip—just a little chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
Encyclopaedia Britannica's editors oversee subject matter regions during which they have got comprehensive knowledge, no matter whether from decades of expertise acquired by engaged on that content or via study for a complicated degree. They create new information and validate and edit written content acquired from contributors.
Crystalline framework is characterized by a geometrical, repeating pattern of symmetric molecular construction. The arrangement of atoms forms these purchased, repeating styles.
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。
②固体包裹体：指呈固态相存在包裹体，多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
15The trick to a fantastic thermoelectric materials is often a crystal structure during which electrons can movement freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
Crystallography is definitely the review of crystals, and it discounts with anything from best geometric styles to seemingly random conglomerations of particles and minerals.
14For case in point, We've Quartz crystal clocks and watches exact to inside of just one moment a yr.例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。
The C60 molecules, also referred to as buckyballs, are fairly potent and Virtually incompressible. Crystals are fashioned this kind of which the balls are organized in an fcc lattice with a one particular-nanometre spacing in between the centres of adjacent balls. The related C70 molecule has The form get more info of the rugby ball; C70 molecules also kind an fcc crystal when stacked together. The solid fullerenes form molecular crystals, with weak binding—furnished by van der Waals interactions—involving the molecules.