Not known Details About Crystal
Not known Details About Crystal
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对这类水晶晶簇观赏石的欣赏与评价，主要是强调晶体的完整、品种的名贵（如紫水晶、烟晶、发晶等）、造型奇特、含有名贵晶体（如辰砂、辉锑矿等）伴生等。晶簇产于矿床晶洞中，长相完美的并不多见，要完整无损地采集下来，又比较困难，故而采集起来代价较大，精品晶簇价值也就昂贵了。
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
Significant crystals of diamond are precious gemstones. The crystal has other fascinating Homes; it's the very best audio velocity of any solid and is the greatest conductor of heat. Apart from diamond, the other prevalent form of carbon is graphite, that's a layered product. Each and every carbon atom has 3 coplanar in the vicinity of neighbours, forming an arrangement called the honeycomb lattice. Three-dimensional graphite crystals are obtained by stacking very similar levels.
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
Sensible Vocabulary: related phrases 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 more benefits » It's also possible to locate related words and phrases, phrases, and synonyms during the subject areas:
根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
11I cautiously opened the package deal and found a crystal bell inside of.我小心地打开包裹，发现里面有一个水晶钟。
Among the many binary crystals, the best structures to visualize are All those with equivalent quantities of The 2 types of atoms. The construction of sodium chloride relies on the dice. To build the lattice, the sodium and chlorine atoms are put on alternate corners of a cube, plus the construction is repeated (Determine 3B).
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。
With the Cambridge English Corpus We are saying the chain topology during the substantial w region functions given that the proverbial ' scratch-on-theglass ' wanted inside the organic and natural chemistry laboratory to produce crystals. From the Cambridge English Corpus Constant-stress and temperature molecular-dynamics simulations of crystals with the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. Through the Cambridge English Corpus Along with these, dust particles are noticed in reduced-temperature plasmas, like Those people Employed in plasma processing and plasma crystals. In the Cambridge English Corpus The final Element of the e-book focuses on peculiarities of strongly coupled dusty plasmas, such as the development of dust crystals and involved beautiful forces. In the Cambridge English Corpus Entire 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 even more irregular, Key morphologies weren't observed. From the Cambridge English Corpus See all examples of crystal These examples are from corpora and from sources on the net. Any views within the examples never characterize the belief on the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
Crystals are not only renowned for his or her Actual physical visual appeal, but different crystals of different elements and formations may result in an unlimited a number of uses and Bodily properties.
This Evaluate chronicles in excess of 20 years of exploration into developing a genetic code for crystal engineering. Rather then directing Organic processes, this code works by using artificial sorts of DNA to programme the assembly of nanoparticles and microparticles into 1D, 2nd and 3D crystalline architectures, in which nearly every facet of the resultant buildings might be systematically managed. In just this conceptual framework, the structural and useful improvements are described in order to define the existing level of sophistication and to predict long term directions of your System.
The C60 molecules, also known as buckyballs, are very solid and Practically incompressible. Crystals website are fashioned these types of which the balls are arranged in an fcc lattice which has a just one-nanometre spacing amongst the centres of adjacent balls. The related C70 molecule has The form of a rugby ball; C70 molecules also variety an fcc crystal when stacked together. The good fullerenes sort molecular crystals, with weak binding—furnished by van der Waals interactions—among the molecules.