5 Simple Statements About Crystal Explained
5 Simple Statements About Crystal Explained
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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。
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
10This could be the silicon chip—just a little chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
2She was wearing a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
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。
⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
Crystals is usually grown under reasonable circumstances from all 92 Obviously taking place factors besides helium, and helium is usually crystallized at minimal temperatures by making use of twenty five atmospheres of strain.
Metallic Crystals: Metals generally sort metallic crystals, the place many of the valence electrons are free of charge to maneuver throughout the lattice. Iron, as an example, can type various metallic crystals.
Solids that have quick-array get but deficiency lengthy-array buy are termed amorphous. Virtually any content is often designed amorphous by immediate solidification from your soften (molten condition). This situation is unstable, as well as the good will crystallize in time. Should the timescale for crystallization is yrs, then the amorphous point out seems steady.
15The trick to a superb thermoelectric substance is a crystal framework by which electrons can stream freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
⑤、打孔：是在水晶成品未完成前，根据其所需打孔之尺寸及位置，以钻头加工，如制表件、笔筒、瓶孔等。
Binary crystals are located in numerous constructions. Some pairs of features variety multiple composition. At place read more temperature, cadmium sulfide may possibly crystallize both inside the zinc blende or wurtzite structure. Alumina also has two possible buildings at area temperature, α-alumina (corundum) and β-alumina. Other binary crystals exhibit different constructions at distinct temperatures. Among the most elaborate crystals are those of silicon dioxide (SiO2), that has 7 distinct structures at many temperatures and pressures; the commonest of these buildings is quartz.