5 Easy Facts About Crystal Described
5 Easy Facts About Crystal Described
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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。
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晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
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25If you're a Billy Crystal enthusiast, you are going to appreciate this film.如果你是比利·克里斯特尔的影迷，你就会喜欢这部电影。《柯林斯英汉双解大词典》
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。
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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。
A lot of crystals behave like butter in that they are hard at small temperatures but tender at greater temperatures. These are named solids at all temperatures below their melting stage. A achievable definition of a solid is really an item that retains its shape if left undisturbed. The pertinent situation is just how long the object keeps its shape. A remarkably viscous fluid retains its form for an hour or so although not a yr. A stable ought to hold its form for a longer period than that.
看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
One crystals of metals are delicate and malleable, when polycrystalline metals are more durable and more powerful and tend to be more valuable industrially. Most polycrystalline products can be built into massive one crystals after extended warmth procedure. Up to now blacksmiths would warmth a bit of metallic to make it malleable: warmth would make some grains grow massive by incorporating more compact ones. The smiths would bend the softened metal into condition then pound it awhile; more info the pounding would make it polycrystalline again, raising its strength.
Crystallography is definitely the analyze of crystals, and it specials with every thing from fantastic geometric designs to seemingly random conglomerations of particles and minerals.
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
An additional method of crystalline carbon is predicated on the molecule with sixty carbon atoms known as buckminsterfullerene (C60). The molecular shape is spherical. Just about every carbon is bonded to a few neighbours, as in graphite, plus the spherical shape is reached by a mix of twelve rings with five sides and twenty rings with six sides. Related buildings ended up first visualized from the American architect R. Buckminster Fuller for geodesic domes.