A good is crystalline if it has very long-range order. When the positions of the atom and its neighbours are recognised at a person stage, the spot of each atom is known precisely all over the crystal. Most liquids deficiency long-array buy, Whilst several have brief-variety order. Small variety is described as the main- or next-nearest neighbours of the atom. In several liquids the main-neighbour atoms are organized in the exact same composition as during the corresponding sound section.
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。
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
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�?”
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
Lattices could possibly have a single lattice issue for each cell or multiple, yielding a complete of fourteen Bravais crystal lattice kinds. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the 3-dimensional array created by a set of discrete factors.
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。
Crystals are very little much more than an ordered arrangement of molecules or atoms. Crystals are available in many alternative sizes and shapes, and every one has different properties. The things they are made of decides how it will variety.
Crystals tend to be viewed as a little something of huge magnificence, plus they are generally utilized with diamonds website or other stones to generate pieces of jewelry. Many crystals now are gentleman-manufactured in laboratories.
22Working from what The usa now is aware of about by itself, the bureau's authorities and various demographers offer an irresistible, if clouded, crystal ball among their visions.
All crystal ball crystal apparent copyright liquid crystal crystal lattice crystal composition liquid crystal Exhibit See all meanings Idioms and phrases crystal clear idiom
Molecular Crystals: Full molecules are bonded to each other in an structured method. A superb example is often a sugar crystal, which includes sucrose molecules.
⑨、喷砂：立体感弱，较平整，无凹凸感，机器雕刻文字、图形等后进行效果处理。成本低制作快。
21You all know how any time you take a crystal prism and move a beam of daylight through it, you receive a spectrum, which appears like a continual band of rainbow hues.