天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。

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4Without a crystal ball, It can be unachievable to convey the place 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》

养殖晶：养殖晶是指，用天然水晶做种子，然后赋予天然水晶生长的高压条件，养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长，这样的水晶成分（分子式）与天然水晶是一摸一样的，唯一有差别的是，这样的水晶磁场作用没有天然水晶强。

25If you are a Billy Crystal admirer, you are going to adore this film.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》

, has the exact same construction, but there are two options for selecting the holes the atoms will occupy. The 3rd layer is usually positioned above the atoms of the very first layer, producing an alternate layer sequence A

光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。

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22Working from what The united states by now is aware about by itself, the bureau's experts together with other demographers give an irresistible, if clouded, crystal ball between their visions.

From your Cambridge English Corpus We are saying the chain topology while in the superior w location functions as click here being the proverbial ' scratch-on-theglass ' essential within the organic chemistry laboratory to produce crystals. From your Cambridge English Corpus Continuous-stress and temperature molecular-dynamics simulations of crystals of your lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus Besides these, dust particles are actually noticed in minimal-temperature plasmas, like Individuals Employed in plasma processing and plasma crystals. With the Cambridge English Corpus The final Portion of the reserve focuses on peculiarities of strongly coupled dusty plasmas, including the development of dust crystals and involved interesting forces. With the Cambridge English Corpus Comprehensive characterization of harm threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, primary morphologies were not noticed. In the Cambridge English Corpus See all examples of crystal These examples are from corpora and from sources on the web. Any thoughts from the illustrations don't symbolize the impression of your Cambridge Dictionary editors or of Cambridge College Push or its licensors.

Crystallography could be the analyze of crystals, and it deals with all the things from best geometric shapes to seemingly random conglomerations of particles and minerals.

在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。

水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手，但好的水晶一般大家都想得到，值与不值，就要看经验了。由于天然水晶的开采和制作原因，没有瑕疵的水晶很难得到，纯净的饰品要达到与合成水晶媲美的品质，实在是很难得。另外，由于水晶的特性，在佩戴过程中，也会改变其等级，比如因为某种原因，有可能会逐渐产生较大裂纹。