About Crystal
About Crystal
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其它描述：《庶物异名疏》中说： �?水精出大秦国，一名黎�?�?。结晶完整的水晶晶体，就如参差交错的马齿，所以人们又叫它马牙石。先民们最早用它研磨成眼镜片，因而送它一个眼镜石的绰号。水晶有通称，也有俗称。广州一带称水晶叫晶玉，又名鱼脑冻；江苏东海县山民发现水晶会 �?窜火�?�?，于是给它起个放光石的俗名。世间一物多名，不足为奇，而像水晶拥有这么多的别称，实不多见。瞧，从水玉、水碧、白玉、玉瑛、水精石英、黎难、晶玉到菩萨石、马牙石、眼镜石、放光石、千年冰、高山冻、鱼脑冻等等，简直构成一部奇石鉴赏史。
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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。
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
Clever Vocabulary: associated terms 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 extra results » You can even obtain connected terms, phrases, and synonyms during the matters:
30Three times went previous, and I used to be astonished to view it once more: all the openings have been sewed up by slender and white thread and they seemed like the ice crystal on winter's branches during the north.
26Some of the best ingesting Eyeglasses are made from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
Crystals with evident flat faces are named euhedral crystals, whilst those missing described faces are known as anhedral crystals. Crystals consisting of requested arrays of atoms that aren't generally periodic are known as quasicrystals.
⑥、丝印：水晶表面附有不同的色料进行效果处理，颜色层面较厚，着力后方可脱落。
You will discover only a few distinct unit-mobile shapes, so a number of crystals share just one device-mobile sort. An important attribute of a device mobile is the volume of atoms it contains. The overall number of atoms in the complete crystal may be the quantity in Each individual mobile multiplied by the number of device cells. Copper and aluminum (Al) Each and every have a person atom for each unit mobile, though zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms per device mobile, but there are several exceptions. Crystals of polymers, such as, have Countless atoms in Just about every unit mobile.
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Fig. 5: A chance to comprehend described crystal patterns is depending on the symmetry engineering strategy.