New Step by Step Map For Crystal
New Step by Step Map For Crystal
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轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
Bismuth (Bi) seems to get a steel, but the quantity of electrons obtainable for electrical conduction is analogous to that of semiconductors. The truth is, bismuth is called a semimetal. Molecular solids are generally crystals shaped from molecules or polymers. They are often insulating, semiconducting, or metallic, based on the sort of molecules during the crystal. New molecules are consistently being synthesized, and many are created into crystals. The volume of various crystals is gigantic.
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�?”
There are also several elements that resemble crystals but are literally polycrystals. Polycrystals type when microscopic crystals fuse alongside one another to kind a strong. These products tend not to consist of purchased lattices.
无色水晶与无色长石因折射率和密度十分接近故较难区分。主要方法是放大检查。长石有两组极完全解理，显微镜下可见两组解理相交而成的“娱蛤状”包裹体或细直的纹理，而水晶则无解理发育，仅有时可见断续不规则的裂理。
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26Some of the best consuming glasses are made from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
13Nearly all computer systems contain a quartz-crystal clock to control their operation.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
Crystals with evident flat faces are called euhedral crystals, though Those people missing defined faces are called anhedral crystals. Crystals consisting of purchased arrays of atoms that are not generally periodic are identified as quasicrystals.
⑥、丝印：水晶表面附有不同的色料进行效果处理，颜色层面较厚，着力后方可脱落。
Crystallography may be the review of crystals, and it specials with all the things from fantastic geometric designs to seemingly random conglomerations of particles and minerals.
⑦双色水晶：一种紫色和黄色共存一体的水晶，紫色、黄色之间界限较明显，分别占据晶块的一部分。
Fig. 5: The ability to realize described crystal behaviors is depending on the symmetry engineering approach.