Crystal Secrets
Crystal Secrets
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Not all crystals are Similarly crystalline. There are sometimes impurities, along with the ionic & covalent involving molecules can develop vastly diverse structures outside of precisely the same product. A great illustration of this are diamonds and graphene.
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
10This could be the silicon chip—just a little chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
诗中道出一段唐代由盛变衰的史实。玄宗末年，杨贵妃得宠，三姐妹并封为国夫人。他们养尊处优，奢华至极，仆人用水晶盘将珍馐佳肴端到宴席上，美人觉得没有口味，懒得动筷子。作为“诗圣”作为“史诗”，紫驼一段写饮食之精美，不空发议论，只尽情揭露事实，无一刺讥语，无一慨叹声，却使人于以外得之：此诗之善讽也。以史为鉴，这样的世道，这样的人物，国家不出“安史之乱”那样的大祸反倒不正常了。
条痕颜色：无色。矿物粉末的颜色叫条痕。它可以消除假色，减弱他色，保留自色，是比矿物的颜色更为可靠的鉴定特征之一。
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
26Some of the finest consuming glasses are comprised of guide 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》
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�?。
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。
Within the Cambridge English Corpus We are saying the chain topology from the high w area acts as the proverbial ' scratch-on-theglass ' required inside the natural and organic chemistry laboratory to produce crystals. Through the Cambridge English Corpus Constant-stress and temperature molecular-dynamics simulations of crystals on the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus Together with these, dust particles have already been observed in minimal-temperature plasmas, like All those Utilized in plasma processing and plasma crystals. From your Cambridge English Corpus The final Section of the e book focuses on peculiarities of strongly coupled dusty plasmas, including the development of dust crystals and connected attractive forces. With here the Cambridge English Corpus Total characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. With the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, Principal morphologies were not observed. With the Cambridge English Corpus See all examples of crystal These illustrations are from corpora and from resources on the web. Any thoughts inside the examples will not depict the view in the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
You will discover only some distinct device-mobile styles, so numerous crystals share just one unit-mobile variety. A very important characteristic of the device mobile is the quantity of atoms it includes. The overall amount of atoms in all the crystal is the quantity in Every cell multiplied by the amount of unit cells. Copper and aluminum (Al) Every single have just one atom per device mobile, while zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms for every device cell, but there are numerous exceptions. Crystals of polymers, by way of example, have 1000s of atoms in Each individual device mobile.
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 realize defined crystal routines is dependent on the symmetry engineering approach.