This idea applies equally in a single, two, and 3-dimensional spaces. All the crystal lattice might be constructed by frequently reproducing the pattern with the unit cell in all Instructions.
23Sometimes, however, the crystal sort of the silicate inclusions is observed to resemble far more closely the internal framework of diamond than that of other silicate minerals.然而，有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
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。
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。
C2 [ U ] transparent glass of really high-quality, usually with its area Slice into delicate designs:
Wise Vocabulary: relevant words and phrases Glass blower blowpipe bulletproof glass Minimize glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See much more effects » You can even obtain related terms, phrases, and synonyms while in the matters:
水晶内部有多种矿物包裹体，形成的各种景观可以肉眼观测，这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石，因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性，具有极高欣赏和收藏价值。
Ionic Crystals: Electrostatic forces form ionic bonds. A vintage case in point is a halite or salt crystal.
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看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
There are two this sort of achievable periodic preparations. In each, the very first layer has the atoms packed right into a plane-triangular lattice in which each and every atom has 6 quick neighbours. Figure two exhibits this arrangement for your atoms labeled A
Orthorhombic: These are generally rhombic prisms and dipyramids that resemble tetragons but without having sq. cross-sections.
14For illustration, We've got Quartz crystal clocks and watches correct to inside 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。
crystal Alteration is variable: absent in several crystals, in others creating dense sericite aggregates which may display some recrystallization outcomes to produce coarser-grained white mica. Within the Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are occasionally arranged in aggregates. From the Cambridge English Corpus On top of that, click here haloarchaeal cells ended up embedded inside salt crystals under laboratory conditions and subsequently analysed by gentle microscopy. From your Cambridge English Corpus The white clouds (generally sparse) were being also commonly viewed as getting made up of small crystals of h2o ice, fairly like cirrus within our atmosphere. With the Cambridge English Corpus They may be located in evaporite salt lakes and may be trapped in salt crystals all through evaporation. From the Cambridge English Corpus As a result, the cells (organelles and membranes) are wrecked mechanically by ice crystals, leading to Dying via mobile lysis. In the Cambridge English Corpus The crystals have been Utilized in the 1st or next orders of reflection. From the Cambridge English Corpus In our 8xperiments, the crystals ended up cubes by using a foundation space of eight e mm. From your Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : result of temperature and tension.