Crystal Options
Crystal Options
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Not all crystals are Similarly crystalline. There in many cases are impurities, and also the ionic & covalent among molecules can develop vastly distinct constructions away from a similar material. A terrific example of this are diamonds and graphene.
水晶原石观赏石充分体现了天然水晶的本质，经过抛光的水晶原石观赏石，玲珑剔透、晶莹璀璨，独具匠心的设计，恰到好处地显露出水晶的魅力。如果您想单纯的欣赏水晶，水晶原石观赏石是你的不二之选，给人一种返璞归真的感觉。
结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙
第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。
Fig. four: Making blocks with distinctive designs and surface area chemistries immediate the formation of unique crystal symmetries.
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
Crystals look unique from a number of other rocks and minerals, but �?barring a few Specific conditions �?nearly all minerals hide a crystalline structure beneath the area.
There is a equivalent directive about crystal glass which differentiates among total lead crystal, direct crystal and crystal.
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
The definition of the sound seems clear; a strong is normally thought of as currently being difficult and agency. On inspection, nonetheless, the definition gets significantly less simple. A dice of butter, such as, is tough after currently being saved in a very refrigerator and it is Evidently a reliable. Soon after remaining around the kitchen counter for on a daily basis, the identical cube turns into rather comfortable, and it truly is unclear In case the butter really should however be thought of a solid.
Through the Cambridge English Corpus We say the chain topology while in the substantial w region acts as being the proverbial ' scratch-on-theglass ' required while in the organic and natural chemistry laboratory to create crystals. Through the Cambridge English Corpus Regular-stress and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. With the Cambridge English Corpus In addition to these, dust particles are already noticed in small-temperature plasmas, like website those Employed in plasma processing and plasma crystals. From your Cambridge English Corpus The ultimate A part of the book concentrates on peculiarities of strongly coupled dusty plasmas, like the formation of dust crystals and linked attractive forces. Within the Cambridge English Corpus Complete characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. With the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, Principal morphologies weren't observed. Within the Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from sources on the internet. Any opinions in the illustrations usually do not depict the viewpoint with the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
The C60 molecules, also referred to as buckyballs, are pretty potent and almost incompressible. Crystals are fashioned these which the balls are organized in an fcc lattice having a just one-nanometre spacing between the centres of adjacent balls. The comparable C70 molecule has the shape of the rugby ball; C70 molecules also sort an fcc crystal when stacked alongside one another. The reliable fullerenes type molecular crystals, with weak binding—furnished by van der Waals interactions—amongst the molecules.