Crystal for Dummies
Crystal for Dummies
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Not all crystals are Similarly crystalline. There are frequently impurities, along with the ionic & covalent amongst molecules can produce vastly various structures away from the same substance. An incredible illustration of this are diamonds and graphene.
A fundamental plan in crystal constructions will be the device cell. It's the smallest device of volume that allows equivalent cells being organized collectively to occupy all available Area. The geometrical basis of all crystals may be the lattice. A lattice could be seen as a regular and infinite arrangement of points or atoms, exactly where Just about every point or atom has an identical encompassing environment.
4Without a crystal ball, It can be difficult to mention in which we are going to be subsequent year.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
Tetragonal: These crystals variety prisms and double pyramids. The composition is sort of a cubic crystal, website except a person axis is for a longer period than the opposite.
2She was carrying a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
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。
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
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。
第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
晶体 Silicon crystals developed in a laboratory transform mild into electrical Electrical power. 在实验室中长成的硅晶体可将光线转变为电能。
say cheese something which somebody that is using a photograph of you tells you to convey so that the mouth tends to make the shape of the smile
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball 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
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。
对于紫水晶黄水晶这样的单色水晶，通常要观察它的二色性，即使是最顶级的紫水晶黄水晶也是有色差的，通过这个方法可以鉴别是否加色。