Crystal Fundamentals Explained
A solid is crystalline if it's got lengthy-vary order. When the positions of the atom and its neighbours are recognized at a person stage, the area of every atom is understood exactly all through the crystal. Most liquids deficiency very long-assortment purchase, although lots of have short-variety order. Limited variety is outlined as the first- or next-closest neighbours of the atom. In several liquids the 1st-neighbour atoms are arranged in exactly the same structure as inside the corresponding stable stage.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。
A crystal composition focuses on how the atoms are organized In the crystal. Nonetheless, crystallographers have an interest in the overall condition and measurement from the crystal and its exterior qualities. To accomplish this, they should understand about the crystal method.
Fig. 7: A template-directed method can Command The location of developing blocks with a surface website inside the development of elaborate buildings.
25If you're a Billy Crystal admirer, you can expect 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》
Sensible Vocabulary: associated words and phrases and phrases Glass blower blowpipe bulletproof glass cut glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See additional results » It's also possible to locate related phrases, phrases, and synonyms while in the matters:
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
Hexagonal �?Characterised by four axes, a few of that happen to be equal in size and intersect at one hundred twenty degrees, with a fourth axis perpendicular to the other three.
水晶常以晶簇、晶洞形式产出，其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙，当富含硅质矿物的流体进入较薄的熔岩孔隙中，且温、压条件合适时将结晶沉淀出水晶等矿物。
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。
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。
Orthorhombic: They are rhombic prisms and dipyramids that resemble tetragons but without sq. cross-sections.
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。
The C60 molecules, also referred to as buckyballs, are fairly solid and Nearly incompressible. Crystals are fashioned such that the balls are organized in an fcc lattice that has a a single-nanometre spacing in between the centres of adjacent balls. The identical C70 molecule has the shape of the rugby ball; C70 molecules also variety an fcc crystal when stacked together. The strong fullerenes type molecular crystals, with weak binding—provided by van der Waals interactions—in between the molecules.