The 5-Second Trick For Crystal

The 5-Second Trick For Crystal

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17These rings are indicative with the crystal framework of nickel and can be explained only by invoking wavelike Houses of light.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。

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A primary concept in crystal buildings could be the unit cell. It is the smallest device of volume that permits similar cells to get stacked collectively to fill all Room. By repeating the sample on the unit mobile repeatedly in all directions, the complete crystal lattice might be constructed. A cube is The best illustration of a device cell. Two other examples are revealed in Determine 1. The initial could be the unit mobile to get a facial area-centred cubic lattice, and the second is for just a overall body-centred cubic lattice. These structures are defined in the following paragraphs.

Tetragonal: These crystals form prisms and double pyramids. The framework is sort of a cubic crystal, except just one axis is extended than another.

看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。

你们都知道，拿起一个水晶棱镜，让一束阳光通过它，就会得到一个光谱，看起来就像一条连续的彩虹色带。

30Three days went past, and I had been astonished to see it all over again: many of the openings ended up sewed up by skinny and white thread and they looked much like the ice crystal on winter's branches during the north.

损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。

Numerous crystals behave like butter in that they're really hard at reduced temperatures but comfortable at larger temperatures. They can be referred to as solids more info whatsoever temperatures down below their melting point. A possible definition of a reliable is an object that retains its shape if still left undisturbed. The pertinent challenge is how much time the article retains its form. A extremely viscous fluid retains its form for an hour or so but not a 12 months. A solid have to maintain its condition for a longer period than that.

广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。

用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。

的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal crystal clear idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量

水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。

Tetragonal �?Characterized by a few mutually perpendicular axes, two of that are equal in size, when the 3rd is longer or shorter and perpendicular to one other two.