Crystal Can Be Fun For Anyone
Crystal Can Be Fun For Anyone
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诗中“胜美玉”，“过冰清”，写出水晶的质地美，而“亦欲应时明”则描绘出水晶充满灵性的动态美，耐人寻味。罗维是有独特眼光，懂得水晶真谛，第一个称赞水晶超过美玉的伟大诗人。他的认识已被千年之后的科学理论所证实；以水晶为直接吟咏对象的诗篇还有：
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。
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。
Massive crystals of diamond are beneficial gemstones. The crystal has other exciting Attributes; it's the highest audio velocity of any sound and is the greatest conductor of heat. Moreover diamond, the other frequent method of carbon is graphite, which can be a layered substance. Every carbon atom has 3 coplanar close to neighbours, forming an arrangement known as the honeycomb lattice. 3-dimensional graphite crystals are attained by stacking very similar levels.
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。
These examples are from corpora and from sources online. Any thoughts within the illustrations usually do not stand for the view from the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
Crystals are nothing a lot more than an requested arrangement of molecules or atoms. Crystals are available in a number of sizes and styles, and every one has diverse traits. Whatever they are created of determines how it will form.
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。
The definition of the solid appears clear; a reliable is mostly thought of as being difficult and organization. Upon inspection, having said that, the definition gets to be a lot less uncomplicated. A dice of butter, by way of example, is tough just after remaining saved click here in the refrigerator and is Plainly a sound. Immediately after remaining on the kitchen area counter for a day, the same dice gets to be really tender, and it is unclear In the event the butter ought to even now be regarded as a reliable.
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。
国家还并未给天然水晶提供一个等级划分的具体标准，水晶品种繁杂，每一品种都有他不同的评判标准。
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
The C60 molecules, also referred to as buckyballs, are quite robust and Just about incompressible. Crystals are fashioned these the balls are organized in an fcc lattice using a a person-nanometre spacing between the centres of adjacent balls. The comparable C70 molecule has The form of the rugby ball; C70 molecules also type an fcc crystal when stacked collectively. The stable fullerenes kind molecular crystals, with weak binding—furnished by van der Waals interactions—amongst the molecules.