诗中“胜美玉”,“过冰清”,写出水晶的质地美,而“亦欲应时明”则描绘出水晶充满灵性的动态美,耐人寻味。罗维是有独特眼光,懂得水晶真谛,第一个称赞水晶超过美玉的伟大诗人。他的认识已被千年之后的科学理论所证实;以水晶为直接吟咏对象的诗篇还有:
①压电效�?在机械力(压力或拉�?作用下,水晶单晶体的两端会产生电荷,其电量相等但符号相反。在工业上,无色、无缺陷、不具双晶的水晶常被用来作压电石英片。
These advances incorporate unique structures with programmable lattice symmetries and effectively-defined crystal behavior, responsive supplies that leverage the intrinsic Qualities of nucleic acids to control buildings on demand, nanoparticle superlattices grown epitaxially from surfaces and colloidal crystals which offer insights into light-weight–subject interactions. Hunting ahead, we obstacle the community to leverage the extraordinary structural control afforded by crystal engineering with DNA to synthesize lessons of useful supplies that press further than what has become attainable with Obviously transpiring crystalline products or those created by much more conventional tactics.
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2She was wearing a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
结晶�?When sea drinking water is permitted to evaporate, salt crystals are deposited. 海水蒸发后,盐的结晶体就沉淀下来。
30Three days went earlier, and I used to be shocked to check out it yet again: every one of the openings were being sewed up by slim and white thread they usually appeared much like the ice crystal on Winter season's branches from the north.
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。
Q.four. What is the difference between atomic framework and crystal framework? Ans. The first distinction between atomic composition and crystal structure lies within their definitions: atomic composition refers to how atoms are structured in just a solitary molecule or simply a cluster website of molecules, Whilst crystal construction fears the precise arrangement of atoms in just a stable material.
颜色:无色,浅至深的紫色,浅黄、中至深黄色,浅至深褐、棕色,绿至黄绿色,浅至中粉红。
All crystal ball crystal apparent copyright liquid crystal crystal lattice crystal structure liquid crystal Show See all meanings Idioms and phrases crystal distinct idiom
正常的水晶在生长时,多可以发现和柱形尖端棱线平行的生长纹(progress lines)。由于在地底、岩洞中的生长空间多狭窄,尤其在遇到地震时,或地壳变动时,甚至容易遭到其他矿石的挤压,常常会压迫产生不同的「晶面」。还有,当水晶还是在液态状的时候,常常也会包覆着其他的矿石、泥灰一起结晶成长,如金红石(稍后变成发晶)、火山泥灰(稍后变成幻影水晶)等等。所有的这些,都是「自然的一部分」,请不要视为「瑕疵」。
《古今小说·李公子救蛇获称心》:“器皿皆是玻璃、水晶、琥珀、玛瑙为之,曲尽巧妙,非人间所有。”
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手,但好的水晶一般大家都想得到,值与不值,就要看经验了。由于天然水晶的开采和制作原因,没有瑕疵的水晶很难得到,纯净的饰品要达到与合成水晶媲美的品质,实在是很难得。另外,由于水晶的特性,在佩戴过程中,也会改变其等级,比如因为某种原因,有可能会逐渐产生较大裂纹。
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