5 Simple Techniques For Crystal
5 Simple Techniques 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。
23Sometimes, even so, the crystal method of the silicate inclusions is observed to resemble more closely The inner structure of diamond than that of other silicate minerals.然而，有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
Increase to phrase listing Add to phrase record C2 [ U ] transparent glass of really good quality, typically with its surface Slash into delicate styles
2She was sporting a strand of crystal beads.她戴着一串水晶珠子。《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, when the third is perpendicular into the aircraft of another 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。
Crystals are practically nothing over an ordered arrangement of molecules or atoms. Crystals are available numerous shapes and sizes, and every one has different attributes. What they are made of establishes how it's going to form.
13Nearly all personal computers have a quartz-crystal clock to regulate their Procedure.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。
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。
All crystal ball crystal distinct copyright liquid crystal crystal lattice crystal construction liquid crystal display See all meanings Idioms and phrases crystal obvious idiom
You can find only a few distinctive unit-cell styles, so a variety of crystals share an individual device-mobile style. An important characteristic of the device mobile is the amount of atoms it is made up of. The total quantity of atoms in all the crystal may be the quantity in Each and every mobile multiplied by the number of device cells. Copper and aluminum (Al) Each individual have a single atom for every unit mobile, although zinc (Zn) and sodium chloride have two. Most crystals have only some atoms for each unit cell, but there are several exceptions. Crystals of polymers, one example is, have Many Crystal atoms in Each and every 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 several crystals, in Other individuals manufacturing dense sericite aggregates which can display some recrystallization effects to produce coarser-grained white mica. From the Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are sometimes arranged in aggregates. Within the Cambridge English Corpus On top of that, haloarchaeal cells were being embedded inside of salt crystals underneath laboratory circumstances and subsequently analysed by mild microscopy. From your Cambridge English Corpus The white clouds (typically sparse) have been also widely considered to be remaining made up of little crystals of h2o ice, somewhat like cirrus within our ambiance. With the Cambridge English Corpus They are located in evaporite salt lakes and may be trapped in salt crystals in the course of evaporation. Through the Cambridge English Corpus For that reason, the cells (organelles and membranes) are destroyed mechanically by ice crystals, resulting in death through cell lysis. In the Cambridge English Corpus The crystals were being Employed in the 1st or second orders of reflection. From the Cambridge English Corpus In our 8xperiments, the crystals have been cubes with a foundation spot of eight e mm. In the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : result of temperature and tension.