Crystal Can Be Fun For Anyone
Crystal Can Be Fun For Anyone
Blog Article
李商隐，杜牧，白居易，欧阳修，苏轼，呈大昌，辛弃疾，杨万里，吴文英，杨基，魏源等诗坛，词林大家都有歌吟水晶的佳篇传世。
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
Tetragonal: These crystals type prisms and double pyramids. The structure is like a cubic crystal, besides a person axis is longer than one other.
25If you are a Billy Crystal enthusiast, you may enjoy this film.如果你是比利·克里斯特尔的影迷，你就会喜欢这部电影。《柯林斯英汉双解大词典》
Monoclinic �?Characterized by a few unequal axes, two of which intersect at an oblique angle, even though the 3rd is perpendicular to your plane of the other two.
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。
11I cautiously opened the offer and found a crystal bell inside of.我小心地打开包裹，发现里面有一个水晶钟。
Amongst the binary crystals, the simplest buildings to visualise are those with equivalent numbers of the two varieties of atoms. The structure of sodium chloride is based on the cube. To build the lattice, the sodium and chlorine atoms are put on alternate corners of a cube, and the construction is repeated (Determine 3B).
颜色：无色，浅至深的紫色，浅黄、中至深黄色，浅至深褐、棕色，绿至黄绿色，浅至中粉红。
用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。
You can find just a few different unit-mobile shapes, so many different crystals share an individual device-cell variety. An essential characteristic of the unit mobile is the quantity of atoms it is made up of. The entire range of atoms in the entire crystal could be the range in Every cell multiplied by the quantity of unit cells. Copper and aluminum (Al) Every single have a person atom for every device mobile, click here whilst zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms per unit cell, but there are numerous exceptions. Crystals of polymers, one example is, have Countless atoms in each device mobile.
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
crystal Alteration is variable: absent in many crystals, in Other individuals generating dense sericite aggregates which may demonstrate some recrystallization outcomes to provide coarser-grained white mica. With the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are sometimes organized in aggregates. Through the Cambridge English Corpus On top of that, haloarchaeal cells have been embedded within salt crystals below laboratory problems and subsequently analysed by mild microscopy. In the Cambridge English Corpus The white clouds (usually sparse) were being also commonly thought to be remaining made up of very small crystals of drinking water ice, instead like cirrus inside our environment. In the Cambridge English Corpus They are really found in evaporite salt lakes and will be trapped in salt crystals for the duration of evaporation. In the Cambridge English Corpus Thus, the cells (organelles and membranes) are ruined mechanically by ice crystals, leading to Dying via cell lysis. In the Cambridge English Corpus The crystals ended up Utilized in the 1st or 2nd orders of reflection. Within the Cambridge English Corpus In our 8xperiments, the crystals have been cubes that has a foundation area of eight e mm. From the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : influence of temperature and tension.