A sound is crystalline if it's got extensive-variety purchase. Once the positions of the atom and its neighbours are recognized at one particular level, the spot of every atom is understood exactly all over the crystal. Most liquids deficiency extended-selection order, Even though lots of have limited-array purchase. Shorter array is described as the first- or second-nearest neighbours of the atom. In many liquids the very first-neighbour atoms are organized in exactly the same composition as from the corresponding stable section.
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
一般而言，紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅，颜色较深的为A级，稍浅的为B级。一般颜色较深的价格高，但要以不深暗为标准。颜色包括两种，一种是水晶本身的颜色，另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正，分布要均匀，不能太深或太浅，如澳州玉、蓝玉髓、紫晶、黄水晶，其价格就高。无色的水晶内含包裹体的颜色艳丽，其价格也高，如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。
If you wish to see how crystals are fashioned, you could perform a little job within your incredibly have kitchen area and see the development in the crystals manifest using your very own eyes . This may be finished by Placing a little degree of desk salt into some normal faucet water, hold out 24 several hours, and you will see wonderful cubed formations. This comes about since the water is evaporating, which brings about the atoms which make up the salt (the mineral) as well as water to come back closer together.
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
, has precisely the same framework, but there are two alternatives for selecting the holes which the atoms will occupy. The 3rd layer might be positioned around the atoms of the main layer, building an alternate layer sequence A
水晶内部有多种矿物包裹体，形成的各种景观可以肉眼观测，这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石，因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性，具有极高欣赏和收藏价值。
Hexagonal �?Characterised by four axes, 3 of which are equivalent in size and intersect at one hundred twenty levels, which has a fourth axis perpendicular to one other three.
Several crystals behave like butter in that they're hard at reduced temperatures website but tender at greater temperatures. They are called solids in the slightest degree temperatures beneath their melting stage. A attainable definition of the good is definitely an object that retains its form if left undisturbed. The pertinent challenge is how much time the thing keeps its condition. A hugely viscous fluid retains its form for an hour although not a 12 months. A good must keep its form for a longer time than that.
晶体 Silicon crystals developed in a laboratory transform gentle 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 a person who is having a photograph of you lets you know to mention so that your mouth makes The form of a smile
The sodium chloride crystal lattice is characterised with the shut packing of your favourable sodium ions and destructive chloride ions. Just about every sodium ion is surrounded by 6 chloride ions, and every chloride ion is surrounded by 6 sodium ions, making a extremely stable and symmetrical framework.
⑤、打孔：是在水晶成品未完成前，根据其所需打孔之尺寸及位置，以钻头加工，如制表件、笔筒、瓶孔等。
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