This idea applies equally in a single, two, and three-dimensional Areas. All the crystal lattice may be created by regularly reproducing the sample with the unit cell in all Instructions.
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结晶的形状非常细小,需要用显微镜才能看得清楚,外观上看起来是平滑、块状。常见最多的是各式玛瑙
水碧:《山海经》中,水晶又被称作水碧: �?又南三百里,日耿山,无草木,多水碧 �?,郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用,晋代郭景纯《璞江赋》道�?�?鬼,水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉,水精谓之玉瑛也�?”
Fig. 4: Constructing blocks with various designs and surface chemistries immediate the development of distinctive crystal symmetries.
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光泽:玻璃光泽。断口处为油脂光泽。光泽,指宝石表面对光线反射的一种光学性质。观察水晶的光泽,可用手握着它,以灯光或窗户投进来的光线看表面反射,透明水晶亮度与光泽强弱有关。
The weather are uncovered in a variety of crystal packing arrangements. The most typical lattice constructions for metals are Individuals received by stacking the atomic spheres into quite possibly the most compact arrangement.
13Nearly all pcs consist of a quartz-crystal clock to regulate 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。
多色�?无色水晶没有多色性。有色水晶有弱到强的多色�?表现为体色的不同深浅。
15The trick to a great thermoelectric product can be a crystal structure through which electrons can movement 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。
Crystal Lattices You can find seven devices of crystal constructions, that are also known as lattices or Area lattices:
在透明的水晶中,隐裂纹呈亮晶晶的片状,有时还会有晕彩效应。这些裂纹是水晶在生长过程中,遇到外力挤压而在内部产生的一些隐形裂纹,隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充,形成愈合的裂纹,也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
crystal Alteration is variable: absent in many crystals, in Other people developing dense sericite aggregates which can show some recrystallization consequences to provide coarser-grained white mica. With the Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are sometimes arranged in aggregates. Within the Cambridge English Corpus Furthermore, haloarchaeal cells had been embedded in just salt crystals beneath laboratory conditions and subsequently analysed by gentle microscopy. Through the Cambridge English Corpus The white clouds (ordinarily sparse) were being also commonly viewed as currently being made up of tiny crystals of water ice, relatively like cirrus within our ambiance. With the Cambridge English Corpus These are present in evaporite salt lakes and may be trapped in salt crystals during evaporation. From the Cambridge English Corpus Therefore, the cells (organelles and membranes) are wrecked mechanically by ice crystals, leading to death by cell lysis. From your Cambridge English Corpus The crystals ended up Employed in the primary or second orders of reflection. In the Cambridge English Corpus Inside our 8xperiments, the crystals have been cubes that has a base more info location of eight e mm. From your Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : impact of temperature and tension.