The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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27Local economists have appeared into their crystal balls and observed something somewhat awful.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
A elementary thought in crystal buildings may be the device mobile. It's the smallest device of volume that allows identical cells to be arranged alongside one another to occupy all obtainable Area. The geometrical basis of all crystals would be the lattice. A lattice may be viewed as a regular and infinite arrangement of factors or atoms, the place Just about every place or atom has an identical surrounding ecosystem.
A crystal framework concentrates on how the atoms are arranged inside the crystal. Nonetheless, crystallographers are interested in the overall form and size with the crystal along with its external properties. To perform this, they have to know about the crystal process.
第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。
You'll find many alternative crystals determined by geometric structures, crystal growth, and material. There may be arrangements of hexagonal carbon atoms or amethyst that makes hexagonal pyramid buildings.
Learn the way The form with the crystals ascertain the different minerals into familiesMinerals crystallize In line with amongst 7 here motifs, often called crystal devices.
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。
Crystals are almost nothing more than an purchased arrangement of molecules or atoms. Crystals are available a number of sizes and shapes, and every one has unique qualities. The things they are made of establishes how it is going to form.
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
晶体 Silicon crystals developed in the laboratory transform light-weight into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。
16I opened the box and observed a piece of crystal snowflake and a greeting card with "Pleased Birthday" within the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
Crystallography will be the study of crystals, and it discounts with almost everything from fantastic geometric shapes to seemingly random conglomerations of particles and minerals.
The framework in the sodium atoms by itself, or perhaps the chlorine atoms by itself, is fcc and defines the device mobile. The sodium chloride composition Consequently is created up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) is based on the bcc composition; every single other atom is cesium or chlorine. In such cases, the device cell is really a cube. The 3rd important construction 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。