How Crystal can Save You Time, Stress, and Money.
How Crystal can Save You Time, Stress, and Money.
Blog Article
其它描述:《庶物异名疏》中说: �?水精出大秦国,一名黎�?�?。结晶完整的水晶晶体,就如参差交错的马齿,所以人们又叫它马牙石。先民们最早用它研磨成眼镜片,因而送它一个眼镜石的绰号。水晶有通称,也有俗称。广州一带称水晶叫晶玉,又名鱼脑冻;江苏东海县山民发现水晶会 �?窜火�?�?,于是给它起个放光石的俗名。世间一物多名,不足为奇,而像水晶拥有这么多的别称,实不多见。瞧,从水玉、水碧、白玉、玉瑛、水精石英、黎难、晶玉到菩萨石、马牙石、眼镜石、放光石、千年冰、高山冻、鱼脑冻等等,简直构成一部奇石鉴赏史。
A different fun, and tasty, experiment should be to kind massive crystals making use of sugar. By heating sugar with h2o then permitting this Answer evaporate on sticks, you'll be able to form rock candy from sugar crystals!
These improvements contain exotic structures with programmable lattice symmetries and nicely-defined crystal behaviors, responsive supplies that leverage the intrinsic Qualities of nucleic acids to manipulate buildings on desire, nanoparticle superlattices grown epitaxially from surfaces and colloidal crystals that provide insights into gentle–subject interactions. On the lookout ahead, we problem the Neighborhood to leverage the incredible structural Command afforded by crystal engineering with DNA to synthesize classes of practical elements that force beyond what has been achievable with naturally transpiring crystalline materials or Individuals created by additional common approaches.
Fig. seven: A template-directed solution can Management The location of building blocks on a floor within the development of advanced constructions.
条痕颜色:无色。矿物粉末的颜色叫条痕。它可以消除假色,减弱他色,保留自色,是比矿物的颜色更为可靠的鉴定特征之一。
结晶�?When sea water website is permitted to evaporate, salt crystals are deposited. 海水蒸发后,盐的结晶体就沉淀下来。
水晶内部有多种矿物包裹体,形成的各种景观可以肉眼观测,这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石,因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性,具有极高欣赏和收藏价值。
There exists a comparable directive about crystal glass which differentiates among whole guide crystal, lead crystal and crystal.
水晶是有成色等级之分,影响水晶价位的因素很多,不像钻石以4C就可以判定,所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好,越透越好,颜色越娇嫩越好,形状越典型越好。不过最重要还是自己喜欢,而选购时辨识真伪的方法大致有下列几种:
Solids that have short-assortment purchase but absence extended-array purchase are called amorphous. Practically any substance is often built amorphous by fast solidification with the soften (molten condition). This situation is unstable, as well as strong will crystallize in time. If your timescale for crystallization is several years, then the amorphous condition seems steady.
被主体水晶所捕获的包裹体。原生包裹体通常为固相,形态较规则。水晶中典型的原成包裹体有金红石、电气石、黄铁矿等,也会见到岩石碎屑或集合体。
Orthorhombic: They're rhombic prisms and dipyramids that resemble tetragons but devoid of 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。
Fig. 5: The chance to notice described crystal practices is dependent on the symmetry engineering method.