诗中“胜美玉”，“过冰清”，写出水晶的质地美，而“亦欲应时明”则描绘出水晶充满灵性的动态美，耐人寻味。罗维是有独特眼光，懂得水晶真谛，第一个称赞水晶超过美玉的伟大诗人。他的认识已被千年之后的科学理论所证实；以水晶为直接吟咏对象的诗篇还有：
23Sometimes, nevertheless, the crystal method of the silicate inclusions is noticed to resemble a lot more closely The inner construction of diamond than that of other silicate minerals.然而，有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
A simple idea in crystal structures is definitely the unit cell. It is the smallest unit of quantity that permits equivalent cells for being stacked alongside one another to fill all House. By repeating the sample of the device cell again and again in all Instructions, your entire crystal lattice is often produced. A dice is The only illustration of a device cell. Two other illustrations are proven in Determine one. The initial will be the device cell to get a face-centred cubic lattice, and the 2nd is for the body-centred cubic lattice. These buildings are discussed in the following paragraphs.
Most stable supplies located in nature exist in polycrystalline form instead of as one crystal. They are literally composed of many grains (tiny crystals) packed jointly to fill all Area. Each specific grain has a distinct orientation than its neighbours. Despite the fact that lengthy-range buy exists within just one grain, with the boundary between grains, the ordering improvements direction. A typical piece of Crystal iron or copper (Cu) is polycrystalline.
You'll find many alternative crystals based on geometric buildings, crystal advancement, and product. There might be preparations of hexagonal carbon atoms or amethyst that makes hexagonal pyramid constructions.
They're going to at some point come up with a pleasant minimal uniform cluster of atoms, this is the whole process of expanding crystals. The greater they are able to arrive collectively, the greater of the formation will likely be visible towards the bare eye. Scientists can identify what mineral They can be investigating by how the crystals sort.
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There's a equivalent directive about crystal glass which differentiates amongst entire guide crystal, guide crystal and crystal.
Metallic Crystals: Metals generally form metallic crystals, where by a few of the valence electrons are free of charge to maneuver all over the lattice. Iron, one example is, can kind distinctive metallic crystals.
颜色：无色，浅至深的紫色，浅黄、中至深黄色，浅至深褐、棕色，绿至黄绿色，浅至中粉红。
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”。
Crystal Lattices There are actually seven units of crystal buildings, which are also called lattices or House lattices:
crystal, any solid content where the component atoms are organized in the definite pattern and whose floor regularity reflects its interior symmetry.
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手，但好的水晶一般大家都想得到，值与不值，就要看经验了。由于天然水晶的开采和制作原因，没有瑕疵的水晶很难得到，纯净的饰品要达到与合成水晶媲美的品质，实在是很难得。另外，由于水晶的特性，在佩戴过程中，也会改变其等级，比如因为某种原因，有可能会逐渐产生较大裂纹。