Crystal Secrets

Crystal Secrets

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A solid is crystalline if it has extended-selection order. As soon as the positions of an atom and its neighbours are identified at one stage, the place of every atom is known precisely through the crystal. Most liquids deficiency lengthy-variety order, Despite the fact that quite a few have limited-selection purchase. Quick range is described as the 1st- or 2nd-closest neighbours of an atom. In several liquids the primary-neighbour atoms are arranged in precisely the same framework as inside the corresponding strong phase.

12He tried out all over again in quite a few other towns 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。

A crystal structure focuses on how the atoms are arranged inside the crystal. Nevertheless, crystallographers have an interest in the general form and measurement in the crystal and also its exterior qualities. To perform this, they have to learn about the crystal process.

看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。

C2 [ U ] clear glass of quite superior quality, ordinarily with its area cut into sensitive designs:

无色水晶与无色长石因折射率和密度十分接近故较难区分。主要方法是放大检查。长石有两组极完全解理，显微镜下可见两组解理相交而成的“娱蛤状”包裹体或细直的纹理，而水晶则无解理发育，仅有时可见断续不规则的裂理。

⑦、镀彩：运用类似电镀的手法在水晶表面以不同的色彩，层面较薄，经摩擦可划伤�?；出现划痕，由于镀彩经常位于底部，因此在镀彩底部经常采用其它对象附着，如生肖文镇。

You will find a related directive about crystal glass which differentiates amongst total guide crystal, lead crystal and crystal.

仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。

A crystal method refers to the classification of crystals depending on the geometric arrangement and symmetry of their lattice constructions. There are 7 main crystal programs:

15The trick to a great thermoelectric content is a crystal framework by which electrons can flow freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。

You will discover only a few distinctive device-cell designs, so many alternative crystals share a single device-cell type. A significant attribute of the unit mobile is the volume of atoms it consists of. The overall quantity of atoms in all the crystal will be the variety in each mobile multiplied by the number of unit cells. Copper and aluminum (Al) Each and every have read more one particular atom per device mobile, whilst zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms for every unit mobile, but usually there are some exceptions. Crystals of polymers, by way of example, have Countless atoms in Just about every unit cell.

Crystals are categorized normally categories, for example insulators, metals, semiconductors, and molecular solids. One crystal of the insulator is often transparent and resembles a bit of glass. Metals are shiny Until they have rusted. Semiconductors are sometimes shiny and from time to time transparent but are hardly ever rusty. Quite a few crystals may be classified as a single variety of strong, while some have intermediate conduct. Cadmium sulfide (CdS) can be prepared in pure type and is a wonderful insulator; when impurities are extra to cadmium sulfide, it gets to be a fascinating semiconductor.

21You all know how once you have a crystal prism and go a beam of daylight by it, you receive a spectrum, which seems like a steady band of rainbow colours.