An Unbiased View of Crystal
An Unbiased View of Crystal
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看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
A crystal framework concentrates on how the atoms are organized In the crystal. Nevertheless, crystallographers have an interest in the overall form and measurement with the crystal and its exterior attributes. To perform this, they should know about the crystal procedure.
Fig. 7: A template-directed method can Regulate The location of developing blocks over a surface while in the development of complex structures.
断口：贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂，破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
, has the identical construction, but there are two options for selecting the holes the atoms will occupy. The third layer could be positioned above the atoms of the very first layer, generating an alternate layer sequence A
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 bundle and found a crystal bell inside.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�?。
晶体 Silicon crystals grown in the laboratory transform gentle into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。
The basic models of solids are either atoms or atoms that have merged into molecules. The electrons of the atom go in orbits that form a shell structure around the nucleus. The shells are stuffed in a systematic buy, with Every single shell accommodating only a little range of electrons. Various atoms have distinctive numbers of electrons, which happen to get more info be distributed within a attribute electronic composition of loaded and partly stuffed shells.
国家还并未给天然水晶提供一个等级划分的具体标准，水晶品种繁杂，每一品种都有他不同的评判标准。
14For illustration, We've Quartz crystal clocks and watches exact to within just 1 moment a yr.例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。
This crystal structure is responsible for the special Actual physical and chemical Houses of sodium chloride, which include its higher melting point, electrical conductivity, and skill to variety ionic bonds very easily.