The Basic Principles Of Crystal

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。

One more fun, and tasty, experiment is to kind massive crystals working with sugar. By heating sugar with h2o and after that allowing this Answer evaporate on sticks, you may kind rock sweet from sugar crystals!

结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙

Fig. three: A library of lattice symmetries is usually accessed by modifying the particle Main and DNA shell.

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Monoclinic �?Characterised by three unequal axes, two of which intersect at an oblique angle, whilst the third is perpendicular to your airplane of the opposite two.

水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。

Ionic Crystals: Electrostatic forces sort ionic bonds. A typical example is often a halite or salt crystal.

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：

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All crystal ball crystal very clear copyright liquid crystal crystal lattice crystal structure liquid crystal display See all meanings Idioms and phrases crystal crystal clear idiom

The sodium chloride crystal lattice is characterised through the shut packing with the beneficial sodium ions and detrimental chloride ions. Each individual sodium ion is surrounded by six chloride ions, and every chloride ion is surrounded by six sodium ions, developing a highly stable and symmetrical composition.

The construction from the sodium atoms by itself, or even the chlorine atoms alone, is fcc and defines the device cell. The sodium chloride composition As a result is produced up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) is based Crystal on the bcc construction; every other atom is cesium or chlorine. In cases like this, the unit cell is actually a dice. The third vital framework for AB

Tetragonal �?Characterised by 3 mutually perpendicular axes, two of which are equivalent in size, though the 3rd is for a longer period or shorter and perpendicular to one other two.