5 Essential Elements For Crystal
5 Essential Elements For Crystal
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轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
Yet another entertaining, and tasty, experiment is always to kind massive crystals making use of sugar. By heating sugar with water after which letting this Remedy evaporate on sticks, you can type rock sweet from sugar crystals!
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。
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Fig. 4: Creating blocks with various designs and surface area chemistries direct the development of distinctive crystal symmetries.
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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Crystals are practically nothing a lot more than an ordered arrangement of molecules or atoms. Crystals can be found in many various sizes and styles, and each has distinct traits. What they are created of establishes how it'll sort.
水晶常以晶簇、晶洞形式产出，其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙，当富含硅质矿物的流体进入较薄的熔岩孔隙中，且温、压条件合适时将结晶沉淀出水晶等矿物。
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The sodium chloride crystal lattice is characterised through the close packing of the positive sodium ions and destructive chloride ions. Each sodium ion is surrounded by 6 chloride ions, and every chloride ion is here surrounded by six sodium ions, making a very stable and symmetrical composition.
The framework in the sodium atoms by itself, or perhaps the chlorine atoms alone, is fcc and defines the unit mobile. The sodium chloride composition Therefore is made up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) is based about the bcc structure; every single other atom is cesium or chlorine. In cases like this, the device mobile is actually a dice. The third significant composition for AB
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。