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：

按照透明度指标，水晶越透明，价格越高，好的透明的水晶加工出的成品晶莹剔透、光辉耀眼。透明度高的水晶能提升颜色的艳丽，否则显得呆板无灵性。光学水晶要求全透明、无双晶、无杂质。工艺水晶要求透明、少裂、少瑕疵。熔炼水晶要求透明，可有较多裂纹。三者价值依次降低，熔炼水晶只能作为熔炼水晶玻璃的原料。在工艺水晶中，晶体较大的，可用来做水晶眼镜和雕刻高档工艺品，因而价格较高。

结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙

看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。

. These 4 constructions comprise a lot of the binary crystals with equivalent quantities of cations and anions.

Learn the way The form on the crystals establish the various minerals into familiesMinerals crystallize As outlined by considered one of seven motifs, known as crystal methods.

⑦、镀彩：运用类似电镀的手法在水晶表面以不同的色彩，层面较薄，经摩擦可划伤�?；出现划痕，由于镀彩经常位于底部，因此在镀彩底部经常采用其它对象附着，如生肖文镇。

As being a incredibly hot Resolution cools or possibly a saturated solution evaporates, particles attract shut enough for chemical bonds to sort. Crystals might also variety from deposition directly from the gas period. Liquid crystals possess particles oriented in an structured manner, like stable crystals, but are able to movement.

包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。

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。

看孔眼：对于缀穿水晶制品（如项链、手链、佛珠），要看孔眼是否平直，孔的粗细是否均匀，有无细小裂纹。孔壁必须清澈透明，无“白痕”。

The sodium chloride crystal lattice is characterised by the near packing of your good sodium ions and destructive chloride ions. Each sodium ion is surrounded by 6 chloride ions, and each chloride ion is surrounded by 6 sodium ions, creating a really secure and symmetrical composition.

The framework in the sodium atoms on your own, or the chlorine atoms alone, is fcc and defines the unit mobile. The sodium chloride framework Hence is produced up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) relies within the bcc framework; just about every other atom is cesium or chlorine. In such a case, the device mobile is really a cube. The 3rd vital framework for AB

Tetragonal �?Characterised by three mutually perpendicular axes, two of which are Crystal equivalent in size, while the 3rd is more time or shorter and perpendicular to another two.