Not known Factual Statements About Crystal
Not known Factual Statements About Crystal
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This idea applies Similarly in one, two, and 3-dimensional Areas. Your complete crystal lattice is often created by repeatedly reproducing the pattern of your unit mobile in all directions.
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景观水晶，就是包裹体组成各种造型特异的水晶，有的似山水，有的似人物，有些像文字，有些像动物，植物，器物等等。
Big crystals of diamond are worthwhile gemstones. The crystal has other fascinating Qualities; it's got the best seem velocity of any solid and is the greatest conductor of heat. In addition to diamond, the opposite popular type of carbon is graphite, and that is a layered substance. Each individual carbon atom has 3 coplanar around neighbours, forming an arrangement called the honeycomb lattice. Three-dimensional graphite crystals are attained by stacking very similar levels.
C2 [ U ] transparent glass of very high-quality, typically with its surface area Reduce into fragile designs:
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。
光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。
Crystals could be developed below average situations from all 92 In a natural way developing things apart from helium, and helium may be crystallized at minimal temperatures by making use of twenty five atmospheres of force.
第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
[ C/U ] transparent glass of top of the range, usually with its surface area Slice into styles that replicate mild
say cheese a thing that someone who is getting a photograph of you informs you to mention so that the mouth can make the shape of a smile
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal obvious Crystal 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 categorised generally speaking groups, which include insulators, metals, semiconductors, and molecular solids. A single crystal of an insulator is often clear and resembles a piece of glass. Metals are shiny Except if they have got rusted. Semiconductors are occasionally shiny and often transparent but are under no circumstances rusty. Quite a few crystals is usually labeled as one kind of strong, while others have intermediate behaviour. Cadmium sulfide (CdS) may be geared up in pure kind and is a wonderful insulator; when impurities are included to cadmium sulfide, it gets an interesting semiconductor.
The C60 molecules, also referred to as buckyballs, are rather robust and Nearly incompressible. Crystals are fashioned this sort of which the balls are organized within an fcc lattice which has a 1-nanometre spacing amongst the centres of adjacent balls. The comparable C70 molecule has the shape of a rugby ball; C70 molecules also type an fcc crystal when stacked jointly. The stable fullerenes variety molecular crystals, with weak binding—furnished by van der Waals interactions—in between the molecules.