A good is crystalline if it's long-vary purchase. Once the positions of the atom and its neighbours are recognized at one place, the place of each and every atom is understood exactly all over the crystal. Most liquids lack extensive-selection purchase, although many have shorter-assortment get. Quick assortment is described as the initial- or second-closest neighbours of the atom. In many liquids the 1st-neighbour atoms are organized in the identical structure as within the corresponding stable section.
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。
天然水晶是不可再生资源，随着开发的深入，天然水晶存量已越来越少，为了可持续发展，东海县政府早就制定了保护本地资源，鼓励开发海外水晶资源的政策，但是，海外资源也越来越少，很多国家都提高了开采和出口天然水晶的门槛，进入东海市场的外国水晶价格连年暴涨，其中观赏水晶比普通水晶涨价更快。
养殖晶：养殖晶是指，用天然水晶做种子，然后赋予天然水晶生长的高压条件，养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长，这样的水晶成分（分子式）与天然水晶是一摸一样的，唯一有差别的是，这样的水晶磁场作用没有天然水晶强。
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
你们都知道，拿起一个水晶棱镜，让一束阳光通过它，就会得到一个光谱，看起来就像一条连续的彩虹色带。
Add to word list Add to phrase record [ C/U ] clear rock that appears like ice, or even a bit of it
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
Q.four. What is the distinction between atomic structure and crystal construction? Ans. The key distinction between atomic framework and crystal framework lies of their definitions: atomic structure refers to how atoms are arranged inside of a solitary molecule or a cluster of molecules, While crystal construction problems the particular arrangement of atoms in a solid substance.
crystal The newly crystallized quartz grains are characterised by elongate crystals oriented oblique on the shear band margins, defining an average grain-shape foliation. 来自 Cambridge English Corpus We are saying the chain topology inside the substantial w area functions given that the proverbial ' scratch-on-theglass ' desired during the organic and natural chemistry laboratory to make crystals. 来自 Cambridge English Corpus The age scatter amongst the individual crystals may possibly reflect incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene sorts neutral to pale read more brown, subhedral to anhedral crystals, often made up of inclusions of plagioclase microlaths and opaque phases.
15The trick to a good thermoelectric substance is usually a crystal framework by which electrons can circulation freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
Crystallography could be the analyze of crystals, and it discounts with every little thing from ideal geometric shapes to seemingly random conglomerations of particles and minerals.
14For illustration, We have now Quartz crystal clocks and watches exact to inside of a single moment a calendar year.例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光，都可以在包裹体水晶种找到缩影。