Everything about Crystal
其它描述：《庶物异名疏》中说： �?水精出大秦国，一名黎�?�?。结晶完整的水晶晶体，就如参差交错的马齿，所以人们又叫它马牙石。先民们最早用它研磨成眼镜片，因而送它一个眼镜石的绰号。水晶有通称，也有俗称。广州一带称水晶叫晶玉，又名鱼脑冻；江苏东海县山民发现水晶会 �?窜火�?�?，于是给它起个放光石的俗名。世间一物多名，不足为奇，而像水晶拥有这么多的别称，实不多见。瞧，从水玉、水碧、白玉、玉瑛、水精石英、黎难、晶玉到菩萨石、马牙石、眼镜石、放光石、千年冰、高山冻、鱼脑冻等等，简直构成一部奇石鉴赏史。水晶原石观赏石充分体现了天然水晶的本质，经过抛光的水晶原石观赏石，玲珑剔透、晶莹璀璨，独具匠心的设计，恰到好处地显露出水晶的魅力。如果您想单纯的欣赏水晶，水晶原石观赏石是你的不二之选，给人一种返璞归真的感觉。
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
If you need to see how crystals are fashioned, you may do a little project inside your quite individual kitchen area and see the formation from the crystals occur along with your possess eyes . This can be carried out by Placing a small amount of desk salt into some common tap drinking water, wait around 24 several hours, and you'll see nice cubed formations. This comes about since the drinking water is evaporating, which results in the atoms that make up the salt (the mineral) and also the h2o to come closer together.
. These 4 buildings comprise most of the binary crystals with equivalent figures of cations and anions.
Not all crystals variety in water, but nearly all crystals sort exactly the same way, atoms appear together and become a uniformed cluster. The procedure might take as very little as a few days to probably a thousand decades. Pure crystals that originate from the Earth sort the identical way.
30Three times went past, and I used to be astonished to check out it once more: all the openings ended up sewed up by slender and white thread and so they appeared just like the ice crystal on Winter season's branches in the north.
②固体包裹体：指呈固态相存在包裹体，多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
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�?。
Solids which have short-selection get but lack very long-variety purchase are identified as amorphous. Almost any product is often designed amorphous by rapid solidification from the melt (molten point out). This problem is unstable, plus the sound will crystallize in time. In case the timescale for crystallization is yrs, then the amorphous condition seems steady.
There's two such possible periodic arrangements. In Each individual, the 1st layer has the atoms packed right into a airplane-triangular lattice in which each atom has 6 rapid neighbours. Figure 2 shows this arrangement for the atoms labeled A
Molecular Crystals: Complete molecules are bonded to one another within an organized way. A fantastic illustration is actually a sugar crystal, which is made up of sucrose molecules.
The structure of your sodium atoms by yourself, or maybe the chlorine atoms by itself, is fcc and defines the device cell. The sodium chloride structure Consequently is created up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) is based to the bcc framework; every other atom is cesium or chlorine. In this case, the unit cell is a dice. The third crucial construction for AB
crystal Alteration is variable: absent in lots of crystals, in Other individuals producing dense sericite aggregates which can exhibit some recrystallization results to provide coarser-grained white mica. In the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are occasionally arranged in aggregates. From the Cambridge English Corpus Furthermore, haloarchaeal cells have been embedded inside salt crystals below laboratory conditions and subsequently analysed by gentle microscopy. With the Cambridge English Corpus The white clouds (commonly sparse) have been also extensively considered to be staying composed of small crystals of water ice, alternatively like cirrus within our atmosphere. With the Cambridge English Corpus These are located in evaporite salt lakes and will be trapped in salt crystals throughout evaporation. From the Cambridge English Corpus Thus, the cells (organelles and membranes) are ruined mechanically by ice crystals, leading to Loss of life by mobile lysis. From your Cambridge English Corpus The crystals have been Employed in the very first or 2nd orders more info of reflection. From the Cambridge English Corpus In our 8xperiments, the crystals were cubes that has a foundation spot of 8 e mm. Within the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : effect of temperature and pressure.