Detailed Notes on Crystal
Detailed Notes on Crystal
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李商隐，杜牧，白居易，欧阳修，苏轼，呈大昌，辛弃疾，杨万里，吴文英，杨基，魏源等诗坛，词林大家都有歌吟水晶的佳篇传世。
Crystals are lovely rock formations which have impressed individuals for thousands of decades. These are employed for several various things, not only for decoration. A lot of the initial radios at any time invented applied crystals to transmit the radio waves. Some devices, like quartz watches and laser crystals, use Specific Homes and harmonic abilities of crystals to create very exact measurements and changes.
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
Significant crystals of diamond are valuable gemstones. The crystal has other attention-grabbing Qualities; it's got the highest audio velocity of any good and is the best conductor of heat. Apart from diamond, one other common sort of carbon is graphite, which happens to be a layered product. Each and every carbon atom has 3 coplanar around neighbours, forming an arrangement called the honeycomb lattice. 3-dimensional graphite crystals are attained by stacking identical layers.
You'll find many alternative crystals depending on geometric constructions, crystal growth, and product. There may be preparations of hexagonal carbon atoms or amethyst which makes hexagonal pyramid structures.
They'll inevitably generate a pleasant minimal uniform cluster of atoms, This is often the process of developing crystals. The more they will occur jointly, the more of a formation will probably be noticeable on the bare eye. Scientists can decide what mineral They may be taking a look at by how the crystals kind.
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
1A crystal chandelier lit the area.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
A crystal program refers back to the classification of crystals dependant on the geometric arrangement and symmetry of their lattice constructions. You can find 7 most important crystal techniques:
用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
crystal, any strong product during which the ingredient atoms are arranged in the definite pattern and whose area regularity reflects its internal symmetry.
crystal Alteration is variable: absent in many crystals, in Many others generating dense sericite aggregates which may show some recrystallization effects to produce coarser-grained white mica. From your Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are sometimes arranged in aggregates. In the Cambridge English Corpus Furthermore, haloarchaeal cells had been embedded in just salt crystals beneath laboratory conditions and subsequently analysed by mild microscopy. With the read more Cambridge English Corpus The white clouds (typically sparse) had been also greatly thought to be staying made up of very small crystals of h2o ice, fairly like cirrus inside our atmosphere. Within the Cambridge English Corpus They can be located in evaporite salt lakes and may be trapped in salt crystals in the course of evaporation. Within the Cambridge English Corpus As a result, the cells (organelles and membranes) are ruined mechanically by ice crystals, resulting in Loss of life by mobile lysis. Within the Cambridge English Corpus The crystals had been Employed in the very first or next orders of reflection. With the Cambridge English Corpus Inside our 8xperiments, the crystals were being cubes with a foundation space of eight e mm. Within the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : result of temperature and force.