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。

无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。

4Without a crystal ball, It really is not possible to convey in which we are going to be upcoming 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》

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。

C2 [ U ] clear glass of pretty high quality, normally with its floor Slice into fragile patterns:

结晶�?When sea h2o is allowed to evaporate, salt crystals are deposited. 海水蒸发后，盐的结晶体就沉淀下来。

30Three days went past, and I used to be surprised to see it again: each of the openings had been sewed up by thin and white thread and they seemed such as the ice crystal on winter's branches within the north.

11I meticulously opened the package deal and found a crystal bell inside.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�?。

⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。

⑥、丝印：水晶表面附有不同的色料进行效果处理，颜色层面较厚，着力后方可脱落。

You'll find only a Crystal few distinct device-cell designs, so a number of crystals share one unit-mobile kind. A significant attribute of the unit mobile is the amount of atoms it incorporates. The entire variety of atoms in the complete crystal would be the selection in Every single mobile multiplied by the number of unit cells. Copper and aluminum (Al) Each and every have a person atom for each unit cell, while zinc (Zn) and sodium chloride have two. Most crystals have only some atoms for each device cell, but there are numerous exceptions. Crystals of polymers, for example, have thousands of atoms in Just about every device mobile.

⑤、打孔：是在水晶成品未完成前，根据其所需打孔之尺寸及位置，以钻头加工，如制表件、笔筒、瓶孔等。

This crystal composition is answerable for the special Bodily and chemical Homes of sodium chloride, together with its higher melting issue, electrical conductivity, and ability to type ionic bonds easily.