Crystal Options
Crystal Options
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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：
水晶原石观赏石充分体现了天然水晶的本质，经过抛光的水晶原石观赏石，玲珑剔透、晶莹璀璨，独具匠心的设计，恰到好处地显露出水晶的魅力。如果您想单纯的欣赏水晶，水晶原石观赏石是你的不二之选，给人一种返璞归真的感觉。
These improvements include unique structures with programmable lattice symmetries and nicely-defined crystal practices, responsive components that leverage the intrinsic properties of nucleic acids to control buildings on need, nanoparticle superlattices developed epitaxially from surfaces and colloidal crystals that provide insights into light-weight–make any difference interactions. Wanting forward, we challenge the community to leverage the incredible structural Handle afforded by crystal engineering with DNA to synthesize classes of functional products that thrust past what has actually been probable with Normally transpiring crystalline products or Those people created by far more common strategies.
In order to see how crystals are fashioned, you can do a little undertaking within your quite have kitchen and see the development in the crystals occur with all your individual eyes . This may be performed by putting a little degree of table salt into some regular tap h2o, wait around 24 several hours, and you may see awesome cubed formations. This comes about as the water is evaporating, which results in the atoms which make up the salt (the mineral) along with the h2o to return nearer with each other.
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
These examples are from corpora and from sources online. Any viewpoints while in the illustrations usually do not stand for the impression in the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
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 found in a number of crystal packing arrangements. The most common lattice structures for metals are People attained by stacking the atomic spheres into one of the most compact arrangement.
Q.four. Exactly what is the distinction between atomic framework and crystal structure? Ans. The main distinction between atomic composition and crystal construction lies in their definitions: atomic structure refers to how atoms are organized in just a single molecule or perhaps a cluster of molecules, Whilst crystal construction worries the particular arrangement of atoms in just a reliable substance.
Solids which have brief-array order but absence extensive-assortment buy are known as amorphous. Virtually any substance might be built amorphous by fast solidification through the soften (molten state). This ailment is unstable, as well as the solid will crystallize in time. In case the timescale for crystallization is several years, then the amorphous point out appears steady.
There are 2 this sort of achievable periodic preparations. In Every, the first layer has the atoms packed right into a plane-triangular lattice in which each atom has six immediate neighbours. Determine two displays this arrangement for your atoms labeled A
There are actually only some distinctive device-cell designs, so many various crystals share just one device-mobile type. here A significant characteristic of the device cell is the volume of atoms it is made up of. The overall range of atoms in your entire crystal is the amount in Just about every mobile multiplied by the amount of unit cells. Copper and aluminum (Al) Every have just one atom per device cell, while zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms for every device mobile, but usually there are some exceptions. Crystals of polymers, as an example, have thousands of atoms in Each and every unit mobile.
This Critique chronicles above two decades of study into developing a genetic code for crystal engineering. Instead of directing Organic procedures, this code makes use of artificial varieties of DNA to programme the assembly of nanoparticles and microparticles into 1D, 2D and 3D crystalline architectures, in which just about just about every aspect of the resultant structures may be systematically managed. In just this conceptual framework, the structural and functional developments are described in an effort to determine the existing volume of sophistication also to predict long run Instructions of the System.
对于紫水晶黄水晶这样的单色水晶，通常要观察它的二色性，即使是最顶级的紫水晶黄水晶也是有色差的，通过这个方法可以鉴别是否加色。