These crystals were being shaped around one million several years in the past Within the Earth's crust. They manifest once the liquid during the Earth consolidates along with the temperature chills. Other crystals kind when the liquid makes its way in the clefts and dispense minerals in to the clefts.
12He tried out again in many other cities and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
Chemical Bonds The kinds of chemical bonds shaped concerning atoms or teams of atoms in crystals depend upon their dimensions and electronegativity. You will find 4 groups of crystals as grouped by their bonding:
Fig. three: A library of lattice symmetries is often accessed by transforming the particle Main and DNA shell.
You can also find several resources that resemble crystals but are actually polycrystals. Polycrystals kind when microscopic crystals fuse collectively to variety a reliable. These here supplies usually do not encompass purchased lattices.
Not all crystals type in water, but nearly all crystals kind exactly the same way, atoms appear together and turn into a uniformed cluster. The method normally takes as tiny as a couple of days to maybe a thousand several years. All-natural crystals that come from the Earth type exactly the same way.
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。
The elements are located in many different crystal packing preparations. The commonest lattice structures for metals are Individuals attained by stacking the atomic spheres into by far the most compact arrangement.
13Nearly all personal computers consist of a quartz-crystal clock to manage their Procedure.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
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Crystallography would be the examine of crystals, and it offers with anything from excellent geometric styles to seemingly random conglomerations of particles and minerals.
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
水晶观赏石是天然水晶中最具代表的作品，具有其他宝石都不具备的观赏性。不论是玉石翡翠还是都要经过雕琢后次能体现他的价值，而水晶观赏石只需要将表面进行抛光，即展现出晶体内所包裹的物质，直接欣赏原汁原味的水晶石。