The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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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：
③、粗抛光：是将模具压出之毛胚，以金刚石盘直接磨出成品之刻线。④、细抛光：在粗抛光之后，以抛光粉来磨成品至晶莹剔透为止。
4Without a crystal ball, It truly is extremely hard to convey where by we are going to be upcoming yr.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》
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
They will eventually produce a awesome small uniform cluster of atoms, This can be the whole process of expanding crystals. The more they can appear jointly, the more of a formation will probably be seen to your bare eye. Researchers can decide what mineral They are really looking at by how the crystals kind.
Increase to term list Include to word record [ C/U ] clear rock that appears like ice, or a piece of it
损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。
Lots of crystals behave like butter in that they are difficult at minimal temperatures but smooth at higher temperatures. These are identified as solids in the least temperatures down below their melting place. A attainable definition of the solid is an item that retains its condition if still left undisturbed. The pertinent issue is how much time the thing retains its condition. A really viscous fluid retains its form for one hour but not a 12 months. A sound have to continue to keep its condition for a longer period than that.
crystal The freshly crystallized quartz grains are characterized by elongate crystals oriented oblique for the shear band margins, defining an average grain-condition foliation. 来自 Cambridge English Corpus We say the chain topology while in the superior w area functions since the proverbial ' scratch-on-theglass ' required while in the organic chemistry laboratory to create crystals. 来自 Cambridge English Corpus The age scatter between the person crystals might reflect incorporation of xenocrysts from before magmatic pulses get more info or protoliths. 来自 Cambridge English Corpus The clinopyroxene varieties neutral to pale brown, subhedral to anhedral crystals, often made up of inclusions of plagioclase microlaths and opaque phases.
Single crystals of metals are soft and malleable, though polycrystalline metals are more durable and more robust and tend to be more practical industrially. Most polycrystalline products is often made into big single crystals just after prolonged warmth treatment. Prior to now blacksmiths would warmth a bit of metal to make it malleable: heat tends to make a few grains grow big by incorporating lesser kinds. The smiths would bend the softened metallic into form then pound it awhile; the pounding would allow it to be polycrystalline all over again, raising its strength.
The arrangement of an atom’s electrons decides its chemical properties. The Homes of solids are often predictable in the Attributes of their constituent atoms and molecules, and the various shell buildings of atoms are consequently to blame for the variety of solids.
⑦双色水晶：一种紫色和黄色共存一体的水晶，紫色、黄色之间界限较明显，分别占据晶块的一部分。
对于紫水晶黄水晶这样的单色水晶，通常要观察它的二色性，即使是最顶级的紫水晶黄水晶也是有色差的，通过这个方法可以鉴别是否加色。