5 Simple Statements About Crystal Explained

27Local economists have looked into their crystal balls and noticed some thing rather awful.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》

A fundamental notion in crystal structures may be the device mobile. It is the smallest unit of quantity that permits identical cells to be organized together to occupy all readily available Area. The geometrical foundation of all crystals is definitely the lattice. A lattice may be considered as a daily and infinite arrangement of factors or atoms, wherever each position or atom has The same surrounding ecosystem.

发晶的价值取决于发的颜色、罕见性及大小,一般是发色鲜艳、块度大的价格高。水胆水晶的价值主要取决于水胆及晶体的大小、透明度的高低。如果水胆较大并有一定形态,便可加工成较为珍贵的工艺品。另外水胆中的水也有一定的科学研究价值,通过它们可了解几百万年前地球上水的成分及变化。

Insert to term list Add to term list C2 [ U ] transparent glass of very top quality, ordinarily with its surface Lower into fragile patterns

《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。”

发晶,包括钛晶,铜顺发,绿发晶,黑发晶,银发晶,杂色发晶,其中钛晶最珍贵,少数钛晶价值可比钻石,红宝石和蓝宝石以及祖母绿。

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②固体包裹体:指呈固态相存在包裹体,多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。

13Nearly all pcs consist of a quartz-crystal clock to manage their Procedure.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。

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。

地质学家目前为止对晶洞形成还没有广泛认同的理论,但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴,甚至动物挖的地洞。经过漫长时间,空腔的外壁变硬,溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间,缓慢渗入的矿物使得晶体在空腔内部结晶。

There are actually just a few distinctive device-mobile styles, so a number of crystals share a single unit-cell kind. A crucial characteristic of the unit mobile is the number of atoms it contains. The whole variety of atoms in all the crystal will be the variety in Each individual mobile multiplied by the volume of device cells. Copper and aluminum (Al) read more each have 1 atom for every unit cell, although zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms for every device mobile, but usually there are some exceptions. Crystals of polymers, for instance, have A large number of atoms in each unit mobile.

⑤、打孔:是在水晶成品未完成前,根据其所需打孔之尺寸及位置,以钻头加工,如制表件、笔筒、瓶孔等。

水晶观赏石是天然水晶中最具代表的作品,具有其他宝石都不具备的观赏性。不论是玉石翡翠还是都要经过雕琢后次能体现他的价值,而水晶观赏石只需要将表面进行抛光,即展现出晶体内所包裹的物质,直接欣赏原汁原味的水晶石。

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