The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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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。
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
A crystal structure focuses on how the atoms are arranged inside the crystal. However, crystallographers have an interest in the general shape and dimension of the crystal together with its external attributes. To perform this, they need to learn about the crystal technique.
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《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
第二种是“半包裹体”，在水晶结晶以后，由于受到地球引力的影响而产生的裂隙，晶体外的一些物质通过水晶的裂隙渗透到水晶内部，一部分包裹于水晶之中另一部分露于水晶之外。我们可以看到物质渗进水晶的裂迹，常被称为“通道”，这种包裹体所形成的景象相对地较受自然环境和时间的影响，相应的价值也比较�?。
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
发晶：无色、浅黄、浅褐等，可因含金红石常呈金黄、褐红等色，含电气石常呈灰黑色；含阳起石而呈灰绿色。
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
Crystals with obvious flat faces are identified as euhedral crystals, even though People missing described faces are referred to as anhedral crystals. Crystals consisting of ordered arrays of atoms that are not always periodic are identified as quasicrystals.
Browse cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal clear idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Test your vocabulary with our exciting impression quizzes
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⑨、喷砂：立体感弱，较平整，无凹凸感，机器雕刻文字、图形等后进行效果处理。成本低制作快。
crystal Alteration is variable: absent in many crystals, in Other people making dense sericite aggregates which can show some recrystallization consequences to produce coarser-grained here white mica. In the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are sometimes arranged in aggregates. From the Cambridge English Corpus In addition, haloarchaeal cells have been embedded inside of salt crystals below laboratory conditions and subsequently analysed by light microscopy. Within the Cambridge English Corpus The white clouds (normally sparse) had been also commonly thought to be being composed of very small crystals of water ice, somewhat like cirrus within our environment. Within the Cambridge English Corpus They can be located in evaporite salt lakes and can be trapped in salt crystals all through evaporation. Through the Cambridge English Corpus For that reason, the cells (organelles and membranes) are ruined mechanically by ice crystals, leading to Demise by mobile lysis. From your Cambridge English Corpus The crystals were used in the initial or next orders of reflection. Through the Cambridge English Corpus Within our 8xperiments, the crystals were being cubes using a base region of eight e mm. In the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : impact of temperature and strain.