Not known Details About Crystal
Not known Details About Crystal
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李商隐，杜牧，白居易，欧阳修，苏轼，呈大昌，辛弃疾，杨万里，吴文英，杨基，魏源等诗坛，词林大家都有歌吟水晶的佳篇传世。
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。
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。
诗中道出一段唐代由盛变衰的史实。玄宗末年，杨贵妃得宠，三姐妹并封为国夫人。他们养尊处优，奢华至极，仆人用水晶盘将珍馐佳肴端到宴席上，美人觉得没有口味，懒得动筷子。作为“诗圣”作为“史诗”，紫驼一段写饮食之精美，不空发议论，只尽情揭露事实，无一刺讥语，无一慨叹声，却使人于以外得之：此诗之善讽也。以史为鉴，这样的世道，这样的人物，国家不出“安史之乱”那样的大祸反倒不正常了。
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》
Lattices might have one particular lattice place per cell or multiple, yielding a complete of 14 Bravais crystal lattice sorts. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the three-dimensional array created by a set of discrete factors.
水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。
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's the distinction between atomic construction and crystal construction? Ans. The key difference between atomic framework and crystal structure lies of their definitions: atomic construction refers to how atoms are structured inside a one molecule or possibly a cluster of molecules, whereas crystal construction concerns the specific arrangement of atoms in just a sound compound.
[ C/U ] transparent glass website of high quality, normally with its surface Lower into designs that mirror light-weight
Solitary crystals of metals are comfortable and malleable, while polycrystalline metals are tougher and stronger and tend to be more helpful industrially. Most polycrystalline elements may be designed into huge solitary crystals following extended warmth therapy. In the past blacksmiths would heat a bit of metallic to make it malleable: warmth helps make a number of grains develop significant by incorporating more compact types. The smiths would bend the softened metallic into form then pound it awhile; the pounding would ensure it is polycrystalline again, rising its strength.
Crystal Lattices You'll find seven programs of crystal constructions, which might be also known as lattices or Place lattices:
⑨、喷砂：立体感弱，较平整，无凹凸感，机器雕刻文字、图形等后进行效果处理。成本低制作快。
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。