Crystal for Dummies
Crystal for Dummies
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其它描述：《庶物异名疏》中说： �?水精出大秦国，一名黎�?�?。结晶完整的水晶晶体，就如参差交错的马齿，所以人们又叫它马牙石。先民们最早用它研磨成眼镜片，因而送它一个眼镜石的绰号。水晶有通称，也有俗称。广州一带称水晶叫晶玉，又名鱼脑冻；江苏东海县山民发现水晶会 �?窜火�?�?，于是给它起个放光石的俗名。世间一物多名，不足为奇，而像水晶拥有这么多的别称，实不多见。瞧，从水玉、水碧、白玉、玉瑛、水精石英、黎难、晶玉到菩萨石、马牙石、眼镜石、放光石、千年冰、高山冻、鱼脑冻等等，简直构成一部奇石鉴赏史。
Bismuth (Bi) appears for being a metallic, but the quantity of electrons available for electrical conduction is comparable to that of semiconductors. In fact, bismuth known as a semimetal. Molecular solids usually are crystals shaped from molecules or polymers. They may be insulating, semiconducting, or metallic, dependant upon the variety of molecules during the crystal. New molecules are consistently being synthesized, and lots of are made into crystals. The number of distinct crystals is gigantic.
Chemical Bonds The categories of chemical bonds fashioned in between atoms or teams of atoms in crystals depend upon their sizing and electronegativity. You will discover four types of crystals as grouped by their bonding:
Tetragonal: These crystals sort prisms and double pyramids. The composition is like a cubic crystal, other than 1 axis is for a longer period than one other.
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。
你们都知道，拿起一个水晶棱镜，让一束阳光通过它，就会得到一个光谱，看起来就像一条连续的彩虹色带。
解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。
损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。
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。
A crystal procedure refers back to the classification of crystals dependant on the geometric arrangement and symmetry in their lattice constructions. There are 7 principal crystal programs:
Within the Cambridge English Corpus We are saying the chain topology from the substantial w area functions as being the proverbial ' scratch-on-theglass ' essential while in the natural chemistry laboratory to create crystals. From your Cambridge English Corpus Consistent-strain and temperature molecular-dynamics simulations of crystals of the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From the Cambridge English Corpus In combination with these, dust particles have already been observed in reduced-temperature plasmas, like those Utilized in plasma processing and plasma crystals. From the Cambridge English Corpus The ultimate A part of the e book concentrates on peculiarities of strongly coupled dusty plasmas, like the development of dust crystals and related attractive forces. Through the Cambridge English Corpus Full characterization of injury threshold in titanium doped sapphire click here crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or even more irregular, Major morphologies weren't noticed. From the Cambridge English Corpus See all samples of crystal These examples are from corpora and from resources on the web. Any thoughts during the examples will not stand for the opinion on the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal clear idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
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。
⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。