The Greatest Guide To Crystal
The Greatest Guide To Crystal
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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：
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
Chemical Bonds The types of chemical bonds fashioned in between atoms or groups of atoms in crystals depend upon their dimension and electronegativity. You can find four groups of crystals as grouped by their bonding:
第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。
25If you are a Billy Crystal fan, you can like this movie.如果你是比利·克里斯特尔的影迷，你就会喜欢这部电影。《柯林斯英汉双解大词典》
Encyclopaedia Britannica's editors oversee subject matter regions during which they've got substantial understanding, no matter whether from many years of knowledge received by working on that articles or via analyze for a complicated degree. They produce new written content and verify and edit information been given from contributors.
石英：《广雅》称水晶叫石英，色白如莹者又叫白。为附的异形字。司马相如《子虚赋》就�?�?雌黄�?�?之句。苏林解释：�?�?，白石英�?”。
11I very carefully opened the package and located a crystal bell inside of.我小心地打开包裹，发现里面有一个水晶钟。
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�?。
crystal The recently crystallized quartz grains are characterized by elongate crystals oriented oblique on the shear band margins, defining a normal grain-shape foliation. 来自 Cambridge English Corpus We say the chain topology in the large w region acts since more info the proverbial ' scratch-on-theglass ' needed during the organic and natural chemistry laboratory to produce crystals. 来自 Cambridge English Corpus The age scatter among the the individual crystals may reflect incorporation of xenocrysts from previously magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene sorts neutral to pale brown, subhedral to anhedral crystals, occasionally containing inclusions of plagioclase microlaths and opaque phases.
Solitary crystals of metals are delicate and malleable, although polycrystalline metals are harder and much better and tend to be more beneficial industrially. Most polycrystalline elements might be built into substantial solitary crystals following extended warmth treatment method. In the past blacksmiths would warmth a bit of metal to really make it malleable: warmth tends to make some grains mature substantial by incorporating smaller kinds. The smiths would bend the softened metal into condition then pound it awhile; the pounding would enable it to be polycrystalline once more, growing its toughness.
Molecular Crystals: Complete molecules are bonded to each other in an organized method. A good case in point is actually a sugar crystal, which consists of sucrose molecules.
压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光，都可以在包裹体水晶种找到缩影。