看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
the good state of numerous easy substances, that have an everyday condition and surfaces arranged in comparable designs
4Without a crystal ball, It is really extremely hard to convey the place we will be subsequent 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》
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Crystalline composition is characterized by a geometrical, repeating pattern of symmetric molecular framework. The arrangement of atoms sorts these ordered, repeating designs.
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水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
say cheese something that someone who is getting a photograph of you tells you to state so that the mouth would make the shape of a smile
From the Cambridge English Corpus We say the chain topology from the higher w area functions given that the proverbial ' scratch-on-theglass ' desired inside the natural chemistry laboratory to help make crystals. With the Cambridge English Corpus Continuous-strain and temperature molecular-dynamics simulations of crystals on the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus Together with these, dust particles are actually noticed in very low-temperature plasmas, like Individuals Employed in plasma processing and plasma crystals. With the Cambridge English more info Corpus The final part of the e book concentrates on peculiarities of strongly coupled dusty plasmas, including the formation of dust crystals and connected desirable forces. From your Cambridge English Corpus Total characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Through the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, Main morphologies weren't observed. Through the Cambridge English Corpus See all examples of crystal These examples are from corpora and from sources on the net. Any thoughts in the examples will not characterize the impression of your Cambridge Dictionary editors or of Cambridge University Press or its licensors.
Crystal Lattices You will find 7 programs of crystal structures, which happen to be also called lattices or Room lattices:
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
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。