The 5-Second Trick For Crystal
The 5-Second Trick For Crystal
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Not all crystals are Similarly crystalline. There will often be impurities, and also the ionic & covalent concerning molecules can develop vastly various structures from the identical content. A great example of this are diamonds and graphene.
A basic plan in crystal buildings is the device cell. It's the smallest device of volume that allows identical cells being organized jointly to occupy all readily available Area. The geometrical foundation of all crystals is definitely the lattice. A lattice can be considered as a daily and infinite arrangement of details or atoms, the place Each and every level or atom has An analogous bordering environment.
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。
养殖晶：养殖晶是指，用天然水晶做种子，然后赋予天然水晶生长的高压条件，养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长，这样的水晶成分（分子式）与天然水晶是一摸一样的，唯一有差别的是，这样的水晶磁场作用没有天然水晶强。
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
Not all crystals kind in water, but nearly all crystals kind a similar way, atoms come together and become a uniformed cluster. The method will take as small as a few days to probably a thousand several years. Purely natural crystals that originate from the Earth sort the same way.
水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位，而对水晶来说，颜色和净度（水晶行业称作晶体）是近乎同等重要的因素：
1A crystal chandelier lit the room.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。
晶体 Silicon crystals grown in the laboratory change light-weight into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。
Search cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal obvious idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Examination your vocabulary with our entertaining impression quizzes
The sodium chloride crystal lattice is characterized from the shut packing with the beneficial sodium ions and destructive chloride ions. Each and every sodium ion is surrounded by six chloride ions, and every chloride ion is surrounded by six sodium ions, creating check here a highly secure and symmetrical composition.
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。
crystal Alteration is variable: absent in lots of crystals, in Other folks creating dense sericite aggregates which can exhibit some recrystallization results to create coarser-grained white mica. With the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are occasionally organized in aggregates. Through the Cambridge English Corpus Moreover, haloarchaeal cells were embedded in just salt crystals underneath laboratory problems and subsequently analysed by mild microscopy. In the Cambridge English Corpus The white clouds (generally sparse) have been also greatly viewed as staying made up of tiny crystals of h2o ice, rather like cirrus in our environment. From your Cambridge English Corpus They are present in evaporite salt lakes and can be trapped in salt crystals through evaporation. From the Cambridge English Corpus Thus, the cells (organelles and membranes) are ruined mechanically by ice crystals, resulting in Demise via cell lysis. Through the Cambridge English Corpus The crystals had been Employed in the very first or 2nd orders of reflection. With the Cambridge English Corpus Within our 8xperiments, the crystals had been cubes that has a foundation region of 8 e mm. With the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : effect of temperature and pressure.