8Where can we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球？
the reliable condition of numerous straightforward substances, which have a regular condition and surfaces organized in similar patterns
A fundamental principle in crystal structures may be the unit cell. It is the smallest unit of volume that permits similar cells for being stacked jointly to fill all Room. By repeating the pattern of your device mobile repeatedly in all Instructions, your complete crystal lattice may be built. A dice is The best illustration of a unit cell. Two other illustrations are demonstrated in Figure one. The 1st would be the unit mobile for the confront-centred cubic lattice, and the 2nd is for your body-centred cubic lattice. These buildings are described in the following paragraphs.
If you want to see how crystals are formed, you may perform a little challenge inside your very have kitchen and find out the development in the crystals take place with the very own eyes . This may be completed by Placing a small degree of desk salt into some regular faucet h2o, hold out 24 hrs, and you will see nice cubed formations. This takes place as the water is evaporating, which triggers the atoms which make up the salt (the mineral) plus the water to come nearer collectively.
看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
Monoclinic �?Characterized by a few unequal axes, two of which intersect at an get more info oblique angle, when the third is perpendicular to the airplane of another two.
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。
You will find there's comparable directive about crystal glass which differentiates in between total guide crystal, lead crystal and crystal.
Metallic Crystals: Metals often kind metallic crystals, where by some of the valence electrons are absolutely free to move through the lattice. Iron, by way of example, can variety various metallic crystals.
英语-中文（简体） word #beta Beta /beta #preferredDictionaries ^chosen name /chosen /preferredDictionaries
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
The framework of the sodium atoms alone, or perhaps the chlorine atoms by yourself, is fcc and defines the unit mobile. The sodium chloride composition So is made up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) is based about the bcc framework; each individual other atom is cesium or chlorine. In this case, the device cell is a dice. The 3rd vital composition for AB
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