Top Guidelines Of Crystal

Not all crystals are Similarly crystalline. There will often be impurities, as well as the ionic & covalent between molecules can make vastly distinct buildings out of exactly the same content. A terrific example of this are diamonds and graphene.

23Sometimes, on the other hand, the crystal kind of the silicate inclusions is observed to resemble far more intently The interior framework of diamond than that of other silicate minerals.然而,有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。

人造水晶分为熔炼水晶与养殖晶:据水晶专家汪毅的阐述,随着水晶的价值提高,喜欢的人增多,水晶也引起了作伪者的兴趣,现阶段中国水晶市场常见的造假方法为:

Increase to word list Insert to phrase checklist C2 [ U ] clear glass of pretty superior quality, ordinarily with its area Slice into delicate patterns

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。

结晶�?When sea h2o is permitted to evaporate, salt crystals are deposited. 海水蒸发后,盐的结晶体就沉淀下来。

石英:《广雅》称水晶叫石英,色白如莹者又叫白。为附的异形字。司马相如《子虚赋》就�?�?雌黄�?�?之句。苏林解释:�?�?,白石英�?”。

Crystals are practically nothing in excess of an purchased arrangement of molecules or atoms. Crystals can be found in a variety of styles and sizes, and each one has distinct traits. What they are created of decides how it'll sort.

水晶常以晶簇、晶洞形式产出,其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙,当富含硅质矿物的流体进入较薄的熔岩孔隙中,且温、压条件合适时将结晶沉淀出水晶等矿物。

22Working from what The united states by now knows about by itself, the bureau's experts and also other demographers provide an irresistible, if clouded, crystal ball amongst their visions.

From the Cambridge English Corpus We are saying the chain topology from the superior w region acts as being the proverbial ' scratch-on-theglass ' desired within the natural chemistry laboratory to make crystals. In the Cambridge English Corpus Constant-force and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. In the Cambridge English Corpus Along with these, dust particles are actually noticed in small-temperature plasmas, like These used in plasma processing and plasma crystals. Through the Cambridge English Corpus The final A part of the book concentrates on peculiarities of strongly coupled dusty plasmas, such as the development of dust crystals and associated beautiful forces. Within the Cambridge English Corpus Finish characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are check here euhedral; rounded, or even more irregular, Major morphologies weren't noticed. In the Cambridge English Corpus See all examples of crystal These examples are from corpora and from resources on the internet. Any views inside the examples don't depict the viewpoint on the Cambridge Dictionary editors or of Cambridge College Press or its licensors.

隐晶类水晶外观是一块块的,不是成六角水晶簇状,但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶,因为结晶的体积极为细小,需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑,因为结晶之间有“水化硅石”填补,玛瑙便属于此类。

⑤、打孔:是在水晶成品未完成前,根据其所需打孔之尺寸及位置,以钻头加工,如制表件、笔筒、瓶孔等。

This crystal structure is to blame for the exclusive physical and chemical properties of sodium chloride, which include its substantial melting stage, electrical conductivity, and talent to variety ionic bonds very easily.

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