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。
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。
A fundamental concept in crystal buildings would be the device cell. It is the smallest device of quantity that allows identical cells being stacked together to fill all House. By repeating the pattern of your unit cell time and again in all Instructions, your entire crystal lattice may be made. A dice is the simplest example of a device cell. Two other examples are shown in Determine one. The main could be the device mobile for the encounter-centred cubic lattice, and the 2nd is for a overall body-centred cubic lattice. These constructions are discussed in the following paragraphs.
③次生包裹体：指主体水晶形成后，由于环境的变化使得主晶周围的一些物质沿裂隙进入到其内部而形成的包裹体。形成的原因有出熔作用、裂隙的结晶化、以及放射性元素破坏的作用等。水晶典型的次生包裹体有胶花水晶中的氧化铁充填物等。
. These 4 structures comprise many of the binary crystals with equal numbers of cations and anions.
They may at some point create a nice tiny uniform cluster of atoms, this is the process of rising crystals. The more they can occur collectively, the more of the development will probably be visible on the bare eye. Scientists can determine what mineral they are checking out by how the crystals sort.
30Three days went past, and I was surprised to check out it once more: many of the openings were sewed up by thin and white thread and so they seemed such as the ice crystal on winter's branches inside the north.
The elements are located in a number of crystal packing arrangements. The commonest lattice constructions for metals are those acquired by stacking the atomic spheres into essentially the most compact arrangement.
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：
晶体 Silicon click here crystals grown in the laboratory convert light-weight into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。
say cheese something which somebody that is taking a photograph of you informs you to convey so that your mouth would make The form of the smile
国家还并未给天然水晶提供一个等级划分的具体标准，水晶品种繁杂，每一品种都有他不同的评判标准。
⑦双色水晶：一种紫色和黄色共存一体的水晶，紫色、黄色之间界限较明显，分别占据晶块的一部分。
Fig. 5: The opportunity to recognize described crystal behaviors is dependent on the symmetry engineering solution.