Crystal for Dummies
Crystal for Dummies
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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。
An additional exciting, and delicious, experiment is to kind significant crystals applying sugar. By heating sugar with drinking water after which letting this Resolution evaporate on sticks, you may variety rock candy from sugar crystals!
A standard concept in crystal structures would be the unit mobile. It is the smallest device of quantity that allows identical cells being stacked together to fill all Place. By repeating the sample in the device mobile over and over in all directions, the whole crystal lattice may be made. A dice is The only example of a unit cell. Two other examples are revealed in Figure one. The primary would be the device cell for any experience-centred cubic lattice, and the 2nd is for a system-centred cubic lattice. These buildings are stated in the subsequent paragraphs.
Fig. three: more info A library of lattice symmetries is often accessed by modifying the particle core and DNA shell.
. These four constructions comprise almost all of the binary crystals with equivalent numbers of cations and anions.
⑧、雕刻：立体感强，工艺高，做工精细，成本高。分手工雕刻图形、机器雕刻文字。
⑦、镀彩：运用类似电镀的手法在水晶表面以不同的色彩，层面较薄，经摩擦可划伤�?；出现划痕，由于镀彩经常位于底部，因此在镀彩底部经常采用其它对象附着，如生肖文镇。
11I very carefully opened the package and located a crystal bell within.我小心地打开包裹，发现里面有一个水晶钟。
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
22Working from what America currently understands about itself, the bureau's specialists and also other demographers supply an irresistible, if clouded, crystal ball among the their visions.
. The 2nd layer is shaded inside the figure. It has precisely the same plane-triangular framework; the atoms sit while in the holes formed by the very first layer. The 1st layer has two equivalent sets of holes, nevertheless the atoms of the second layer can occupy just one set. The 3rd layer, labeled C
正常的水晶在生长时，多可以发现和柱形尖端棱线平行的生长纹（development lines）。由于在地底、岩洞中的生长空间多狭窄，尤其在遇到地震时，或地壳变动时，甚至容易遭到其他矿石的挤压，常常会压迫产生不同的「晶面」。还有，当水晶还是在液态状的时候，常常也会包覆着其他的矿石、泥灰一起结晶成长，如金红石（稍后变成发晶）、火山泥灰（稍后变成幻影水晶）等等。所有的这些，都是「自然的一部分」，请不要视为「瑕疵」。
在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
21You all know the way when you have a crystal prism and move a beam of sunlight by it, you receive a spectrum, which seems like a steady band of rainbow hues.