5 Simple Statements About Crystal Explained
5 Simple Statements About Crystal Explained
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This idea applies Similarly in a single, two, and 3-dimensional spaces. Your entire crystal lattice can be produced by frequently reproducing the sample in the device cell in all Instructions.
①压电效�?在机械力(压力或拉�?作用下,水晶单晶体的两端会产生电荷,其电量相等但符号相反。在工业上,无色、无缺陷、不具双晶的水晶常被用来作压电石英片。
结晶的形状非常细小,需要用显微镜才能看得清楚,外观上看起来是平滑、块状。常见最多的是各式玛瑙
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。”
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根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
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。
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。
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
Look through cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal clear idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Examination your more info vocabulary with our exciting graphic quizzes
Crystallography may be the analyze of crystals, and it offers with anything from ideal geometric designs to seemingly random conglomerations of particles and minerals.
压电性:水晶晶体受到压力时会产生电荷;反之,受到电压作用时,晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能,称压电性。
Fig. five: A chance to understand defined crystal practices is dependent on the symmetry engineering tactic.