About Crystal
About Crystal
Blog Article
8Where do we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球？
12He tried using yet again in several other cities and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙
Encyclopaedia Britannica's editors oversee topic areas through which they have substantial information, no matter whether from decades of working experience obtained by focusing on that written content or by means of analyze for a sophisticated degree. They produce new written content and verify and edit written content received from contributors.
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。
Find out how the shape from the crystals figure out the different minerals into familiesMinerals crystallize In keeping with considered one of 7 motifs, often known as crystal methods.
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
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。
Crystals will often be viewed as some thing of huge elegance, they usually are generally utilized with diamonds or other stones to help make pieces of jewellery. Many crystals now are gentleman-created in laboratories.
A crystal program refers to the classification of crystals determined by the geometric arrangement and symmetry in their lattice buildings. There are actually 7 key crystal devices:
用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。
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。
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
Binary crystals are found in numerous structures. Some pairs of aspects kind more than one construction. At space temperature, cadmium sulfide may well crystallize both while in the zinc blende or wurtzite framework. Alumina also has two attainable structures at space temperature, α-alumina click here (corundum) and β-alumina. Other binary crystals exhibit different constructions at distinctive temperatures. One of the most complex crystals are These of silicon dioxide (SiO2), that has 7 distinct buildings at many temperatures and pressures; the most typical of these buildings is quartz.