天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。
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。
看做工：水晶制品加工过程分为两种，即磨工和雕工。如水晶项链、手链、耳环等属于研磨品；观音像、内画鼻烟壶等属于雕刻品。
Fig. three: A library of lattice symmetries is often accessed by switching the particle Main and DNA shell.
断口：贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂，破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
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。
水晶原石观赏石，从字面意义理解：观赏水晶石的原貌，即经过抛光去皮后的包裹体水晶和原色水晶，不需雕刻不求象形就具有非常高的观赏价值和收藏价值。此类水晶观赏石对质地要求非常之高，水晶晶体通透干净，颜色艳丽，意境鲜明深刻的价值就高，它的价值特点就好比钻石，实实在在石头本身的价值。
Crystals are nothing at all more than an requested arrangement of molecules or atoms. Crystals come in numerous sizes and shapes, and each has distinct properties. What they are created of establishes how it can sort.
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�?。
幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
Through the Cambridge English Corpus We say the chain topology during the large w region acts since the proverbial ' scratch-on-theglass ' wanted in the natural and organic chemistry laboratory for making crystals. With the Cambridge English Corpus Frequent-pressure and temperature molecular-dynamics simulations of crystals on the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. Through the Cambridge English Corpus Together with these, dust particles are already observed in small-temperature plasmas, like These Utilized in plasma processing and plasma crystals. From your Cambridge English Corpus The final Element of the e book focuses on peculiarities of strongly coupled dusty plasmas, including the formation of dust crystals and involved desirable forces. From the Cambridge English Corpus Comprehensive characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, Main morphologies were not observed. Within the Cambridge English Corpus See all samples of crystal These examples are from corpora and from resources on the web. Any viewpoints in the examples tend not to represent the impression from the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
There are just a few different device-cell designs, so a variety of crystals share an individual unit-mobile kind. A significant characteristic of a unit cell is the quantity of atoms it incorporates. The total variety of atoms in the entire crystal is the variety in Every single mobile multiplied by the number of unit cells. Copper and aluminum (Al) Every have one atom per unit mobile, though zinc (Zn) and sodium chloride have two. Most crystals have only some atoms per unit cell, but there are a few exceptions. Crystals of polymers, as an example, have Many atoms in Each individual unit cell.
水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。
One more form of crystalline carbon click here relies with a molecule with 60 carbon atoms called buckminsterfullerene (C60). The molecular form is spherical. Every single carbon is bonded to a few neighbours, as in graphite, and the spherical form is accomplished by a mix of twelve rings with 5 sides and twenty rings with 6 sides. Identical structures had been first visualized by the American architect R. Buckminster Fuller for geodesic domes.