5 Easy Facts About Crystal Described
5 Easy Facts About Crystal Described
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Not all crystals are equally crystalline. There are sometimes impurities, and also the ionic & covalent among molecules can make vastly distinct structures from a similar substance. A great illustration of this are diamonds and graphene.
①压电效�?在机械力(压力或拉�?作用下，水晶单晶体的两端会产生电荷，其电量相等但符号相反。在工业上，无色、无缺陷、不具双晶的水晶常被用来作压电石英片。
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。
Huge crystals of diamond are important gemstones. The crystal has other exciting properties; it's got the highest audio velocity of any sound and is the best conductor of warmth. Moreover diamond, the other common type of carbon is graphite, which can be a layered materials. Each individual carbon atom has three coplanar near neighbours, forming an arrangement called the honeycomb lattice. A few-dimensional graphite crystals are acquired by stacking related layers.
There are also lots of resources that resemble crystals but are literally polycrystals. Polycrystals sort when microscopic crystals fuse together to type a stable. These elements will not encompass ordered lattices.
Lattices might have just one lattice level for each cell or more than one, yielding a complete of fourteen Bravais crystal lattice kinds. Bravais lattices, named for physicist and crystallographer Auguste Bravais, explain the three-dimensional array produced by a set of discrete factors.
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
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
Lots of crystals behave like butter in that they're really hard at reduced temperatures but delicate at larger temperatures. They can be referred to as solids whatsoever temperatures underneath their melting stage. A attainable definition of the strong is an object that retains its shape if remaining undisturbed. The pertinent challenge is how much time the item retains its condition. A extremely viscous click here fluid retains its form for one hour but not a calendar year. A reliable will have to preserve its shape longer than that.
看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
All crystal ball crystal distinct copyright liquid crystal crystal lattice crystal structure liquid crystal display See all meanings Idioms and phrases crystal obvious idiom
Orthorhombic: These are generally rhombic prisms and dipyramids that resemble tetragons but with out sq. cross-sections.
水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。
This crystal composition is liable for the exceptional physical and chemical Attributes of sodium chloride, such as its substantial melting stage, electrical conductivity, and ability to sort ionic bonds simply.