Top latest Five Crystal Urban news
This idea applies Similarly in a single, two, and 3-dimensional Areas. Your complete crystal lattice may be created by consistently reproducing the pattern of your unit cell in all Instructions.Crystals are lovely rock formations that have surprised people for Many many years. They may be used for a lot of different things, not only for decoration. Lots of the to start with radios at any time invented made use of crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use special Homes and harmonic capabilities of crystals for making very correct measurements and adjustments.
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
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�?”
How Crystals Form The entire process of forming a crystal is termed crystallization. Crystallization frequently happens any time a strong crystal grows from a liquid or Option.
Sensible Vocabulary: related terms and phrases Glass blower blowpipe bulletproof glass cut glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See far more success » You can even obtain relevant words and phrases, phrases, and synonyms inside the subjects:
水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位，而对水晶来说，颜色和净度（水晶行业称作晶体）是近乎同等重要的因素：
Hexagonal �?Characterised by 4 axes, a few of which happen to be equal in length and intersect at one hundred twenty levels, having a fourth axis perpendicular to the other a few.
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�?。
22Working from what The us by now is aware about itself, the bureau's industry experts and various demographers present an irresistible, if clouded, crystal ball amid their visions.
地质学家目前为止对晶洞形成还没有广泛认同的理论，但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴，甚至动物挖的地洞。经过漫长时间，空腔的外壁变硬，溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间，缓慢渗入的矿物使得晶体在空腔内部结晶。
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
Binary crystals are located in many constructions. Some pairs of things type multiple construction. At home temperature, cadmium sulfide may perhaps crystallize possibly during here the zinc blende or wurtzite framework. Alumina also has two probable buildings at place temperature, α-alumina (corundum) and β-alumina. Other binary crystals exhibit unique structures at different temperatures. Amongst the most elaborate crystals are those of silicon dioxide (SiO2), that has 7 distinct structures at several temperatures and pressures; the commonest of those buildings is quartz.