Facts About Crystal Revealed
Facts About Crystal Revealed
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A solid is crystalline if it's very long-vary order. When the positions of an atom and its neighbours are identified at just one issue, the put of every atom is thought exactly throughout the crystal. Most liquids absence long-range buy, Though numerous have brief-assortment purchase. Brief range is outlined as the 1st- or second-closest neighbours of the atom. In many liquids the 1st-neighbour atoms are arranged in exactly the same construction as during the corresponding sound phase.
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
These examples are from corpora and from resources on the web. Any opinions during the examples tend not to stand for the belief on the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
水晶原石观赏石，从字面意义理解：观赏水晶石的原貌，即经过抛光去皮后的包裹体水晶和原色水晶，不需雕刻不求象形就具有非常高的观赏价值和收藏价值。此类水晶观赏石对质地要求非常之高，水晶晶体通透干净，颜色艳丽，意境鲜明深刻的价值就高，它的价值特点就好比钻石，实实在在石头本身的价值。
You will find a comparable directive about crystal glass which differentiates involving whole lead crystal, guide crystal and crystal.
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
A crystal program refers to the classification of crystals according to the geometric arrangement and symmetry of their lattice buildings. You'll find seven main crystal devices:
From your Cambridge English Corpus We are saying the chain topology within the significant w location acts as being the proverbial ' scratch-on-theglass ' required while in the natural and organic chemistry laboratory for making crystals. Within the Cambridge English Corpus Frequent-strain and temperature molecular-dynamics simulations of crystals from the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. Through the Cambridge English Corpus In combination with these, dust particles have already been observed in minimal-temperature plasmas, like These used in plasma processing and plasma crystals. Within the Cambridge English Corpus The final Component of the ebook focuses on peculiarities of strongly coupled dusty plasmas, such as the formation of dust crystals and connected desirable forces. From the Cambridge English Corpus Entire characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, Major morphologies weren't noticed. From your Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from sources online. Any opinions from the examples do not stand for the viewpoint with the Cambridge Dictionary editors or of Cambridge University Press 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
Crystals are classified generally speaking classes, for instance insulators, metals, semiconductors, and molecular solids. One crystal of an insulator is generally clear and resembles a bit of glass. Metals are shiny Unless of course they have got Crystal rusted. Semiconductors are occasionally shiny and in some cases clear but are under no circumstances rusty. Quite a few crystals is often categorized as an individual form of reliable, while some have intermediate conduct. Cadmium sulfide (CdS) is usually prepared in pure variety and is a wonderful insulator; when impurities are included to cadmium sulfide, it results in being an interesting semiconductor.
21You all know how whenever you take a crystal prism and go a beam of daylight through it, you have a spectrum, which looks like a ongoing band of rainbow colors.