These crystals ended up shaped above a million several years in the past In the Earth's crust. They occur if the liquid from the Earth consolidates as well as temperature chills. Other crystals sort when the liquid helps make its way throughout the clefts and dispense minerals into your clefts.

A essential notion in crystal structures may be the device mobile. It is the smallest device of quantity which allows similar cells being arranged with each other to occupy all available House. The geometrical foundation of all crystals is definitely the lattice. A lattice may be viewed as an everyday and infinite arrangement of points or atoms, in which Every position or atom has The same encompassing setting.

人造水晶分为熔炼水晶与养殖晶：据水晶专家汪毅的阐述，随着水晶的价值提高，喜欢的人增多，水晶也引起了作伪者的兴趣，现阶段中国水晶市场常见的造假方法为：

诗中道出一段唐代由盛变衰的史实。玄宗末年，杨贵妃得宠，三姐妹并封为国夫人。他们养尊处优，奢华至极，仆人用水晶盘将珍馐佳肴端到宴席上，美人觉得没有口味，懒得动筷子。作为“诗圣”作为“史诗”，紫驼一段写饮食之精美，不空发议论，只尽情揭露事实，无一刺讥语，无一慨叹声，却使人于以外得之：此诗之善讽也。以史为鉴，这样的世道，这样的人物，国家不出“安史之乱”那样的大祸反倒不正常了。

看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。

当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。

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Crystals is often developed beneath reasonable disorders from all 92 By natural means transpiring factors besides helium, and helium is often crystallized at low temperatures by using twenty five atmospheres of force.

24I want to make my which means crystal apparent.我想把我的意思解释得清清楚楚。《牛津词典》

Crystals with obvious flat faces are called euhedral crystals, when These missing described faces are named anhedral crystals. Crystals consisting of ordered arrays of atoms that are not often periodic are referred to as quasicrystals.

16I opened the box and saw a piece of crystal snowflake and read more a greeting card with "Delighted Birthday" during 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。

Fig. 1: Schematic of crystal formation from setting up blocks composed of a particle Main in addition to a shell of DNA ligands hooked up towards the particle surface area.

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。

The C60 molecules, also called buckyballs, are quite robust and almost incompressible. Crystals are formed these the balls are arranged in an fcc lattice using a just one-nanometre spacing concerning the centres of adjacent balls. The very similar C70 molecule has the shape of a rugby ball; C70 molecules also kind an fcc crystal when stacked alongside one another. The good fullerenes type molecular crystals, with weak binding—provided by van der Waals interactions—among the molecules.