Detailed Notes on Crystal
Detailed Notes on Crystal
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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。
按照透明度指标，水晶越透明，价格越高，好的透明的水晶加工出的成品晶莹剔透、光辉耀眼。透明度高的水晶能提升颜色的艳丽，否则显得呆板无灵性。光学水晶要求全透明、无双晶、无杂质。工艺水晶要求透明、少裂、少瑕疵。熔炼水晶要求透明，可有较多裂纹。三者价值依次降低，熔炼水晶只能作为熔炼水晶玻璃的原料。在工艺水晶中，晶体较大的，可用来做水晶眼镜和雕刻高档工艺品，因而价格较高。
4Without a crystal ball, It can be not possible to mention in which we will be next calendar year.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
Substantial crystals of diamond are worthwhile gemstones. The crystal has other interesting Attributes; it has the highest sound velocity of any reliable and is the greatest conductor of warmth. In addition to diamond, the opposite prevalent kind of carbon is graphite, which happens to be a layered material. Each carbon atom has three coplanar near neighbours, forming an arrangement called the honeycomb lattice. 3-dimensional graphite crystals are attained by stacking similar levels.
水胆水晶，包括气态，液态，固态，有时候可以同时多态并存，无色居多，个别情况下可见红色，绿色，黄色，蓝色，黑色等。
无色水晶与无色长石因折射率和密度十分接近故较难区分。主要方法是放大检查。长石有两组极完全解理，显微镜下可见两组解理相交而成的“娱蛤状”包裹体或细直的纹理，而水晶则无解理发育，仅有时可见断续不规则的裂理。
30Three times went past, and I had been shocked to see it yet again: each of the openings ended up sewed up by skinny and white thread and they seemed much like the ice crystal on Wintertime's branches inside the north.
Ionic Crystals: Electrostatic forces variety ionic bonds. A vintage instance is usually a halite or salt crystal.
仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
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Molecular Crystals: Overall molecules are bonded to one another in an structured method. An excellent example is really a sugar crystal, which contains sucrose molecules.
This Critique chronicles more than twenty years of study into developing a genetic code for crystal engineering. As opposed to directing Organic processes, this code employs synthetic varieties of DNA to programme the assembly of nanoparticles and microparticles into 1D, second and 3D crystalline architectures, in which almost just about every element of the resultant buildings may be systematically controlled. Within this conceptual framework, the structural and practical improvements are described in an effort to determine the current volume of sophistication also to forecast foreseeable future Instructions of your System.
Intelligent Vocabulary: linked text and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See extra results » You can even discover relevant phrases, phrases, read more and synonyms in the topics: