How Much You Need To Expect You'll Pay For A Good Crystal

27Local economists have appeared into their crystal balls and viewed some thing somewhat unpleasant.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》

⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体,这些包裹体的存在,影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质,与水晶整体不协调,被视为水晶的杂质,有这种杂质的水晶是次品。

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。

Most good materials located in mother nature exist in polycrystalline variety as an alternative to as just one crystal. They are literally composed of countless grains (modest crystals) packed collectively to fill all Room. Every particular person grain has a distinct orientation than its neighbours. Although extended-array order exists within just one particular grain, in the boundary in between grains, the ordering variations route. A normal piece of iron or copper (Cu) is polycrystalline.

. These four buildings comprise many of the binary crystals with equivalent figures of cations and anions.

⑧、雕刻:立体感强,工艺高,做工精细,成本高。分手工雕刻图形、机器雕刻文字。

解理:无解理。所谓解理是指矿物被打击时,沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类:极完全解理、完全解理、中等解理、不完全解理和无解理,水晶属于无解理。

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。

24I need to make my indicating crystal obvious.我想把我的意思解释得清清楚楚。《牛津词典》

晶体 Silicon crystals grown inside a laboratory transform mild into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。

天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值,但是包裹体水晶观赏石经常需要适当打磨抛光,这样更方便观赏水晶内部的包裹体。

水晶形成后由于外力作用或某种人为原因使水晶产生大的裂隙或裂纹,这种裂纹有大有小,对水晶的影响也有大小之分。

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。

The C60 molecules, also referred to as buckyballs, are pretty powerful and almost incompressible. Crystals are formed these kinds of which the balls are organized within an fcc lattice that has a 1-nanometre spacing concerning the centres of adjacent balls. The related C70 molecule has The form of the rugby ball; C70 molecules also sort an fcc crystal when stacked with Crystal each other. The sound fullerenes form molecular crystals, with weak binding—supplied by van der Waals interactions—among the molecules.

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