New Step by Step Map For Crystal
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：12He tried out again in various other towns and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
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。
Most reliable elements present in nature exist in polycrystalline kind instead of as one crystal. They are literally composed of numerous grains (little crystals) packed collectively to fill all space. Every person grain has a different orientation than its neighbours. Although long-selection purchase exists inside of one particular grain, on the boundary in between grains, the purchasing modifications route. A standard bit of iron or copper (Cu) is polycrystalline.
Fig. four: Setting up blocks with distinctive styles and surface area chemistries direct the formation of unique crystal symmetries.
发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。
根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
Hexagonal �?Characterized by four axes, a few of which are equivalent in length and intersect at a hundred and twenty levels, by using a fourth axis perpendicular to the opposite 3.
Crystals tend to be viewed as something of immense natural beauty, plus they are commonly used with diamonds or other stones to generate pieces of jewelry. The vast majority of crystals now are gentleman-manufactured in laboratories.
Crystals with apparent flat faces are referred to as euhedral crystals, when those lacking described faces are referred to as anhedral crystals. Crystals consisting of requested arrays of atoms that are not always periodic are identified as quasicrystals.
. The second layer is shaded while in the figure. It has the identical plane-triangular structure; the atoms sit from the holes formed by the initial layer. The main layer has two equivalent sets of holes, though the atoms of the second layer can occupy only one set. The third layer, labeled C
There are only a few diverse device-mobile shapes, so numerous crystals share only one device-cell type. A significant attribute of a device mobile is the volume of atoms it has. The full range of atoms in the whole crystal would be the variety in Each individual cell multiplied by the quantity of device cells. Copper and aluminum (Al) Just about every have just one atom for each device cell, when zinc (Zn) and sodium chloride have two. Most crystals have only some atoms for every device cell, but there are several exceptions. Crystals of polymers, by way of example, have A huge number of atoms in Every unit cell.
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
crystal Alteration is variable: absent in lots of crystals, in Other people making dense sericite aggregates which can present some recrystallization outcomes to make coarser-grained white mica. From the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are occasionally organized in aggregates. Through the Cambridge English Corpus Also, haloarchaeal cells ended up embedded within salt crystals underneath laboratory problems and subsequently analysed by gentle microscopy. Within the Cambridge English Corpus The white clouds (commonly sparse) ended up also extensively considered currently being made up read more of little crystals of drinking water ice, instead like cirrus within our ambiance. In the Cambridge English Corpus These are found in evaporite salt lakes and may be trapped in salt crystals all through evaporation. With the Cambridge English Corpus Hence, the cells (organelles and membranes) are destroyed mechanically by ice crystals, bringing about death by way of mobile lysis. From the Cambridge English Corpus The crystals have been Employed in the first or 2nd orders of reflection. From your Cambridge English Corpus In our 8xperiments, the crystals were being cubes with a foundation space of 8 e mm. Through the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : influence of temperature and force.