Not known Facts About Crystal
Not known Facts About Crystal
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。
Bismuth (Bi) seems to get a metallic, but the amount of electrons available for electrical conduction is analogous to that of semiconductors. In truth, bismuth known as a semimetal. Molecular solids are frequently crystals formed from molecules or polymers. They may be insulating, semiconducting, or metallic, dependant upon the type of molecules from the crystal. New molecules are repeatedly getting synthesized, and many are created into crystals. The amount of different crystals is gigantic.
看做工：水晶制品加工过程分为两种，即磨工和雕工。如水晶项链、手链、耳环等属于研磨品；观音像、内画鼻烟壶等属于雕刻品。
Fig. 7: A template-directed strategy can Manage the placement of setting up blocks on the area in the development of complex constructions.
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
Intelligent Vocabulary: linked words 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 effects » You may also obtain associated terms, phrases, and synonyms during the matters:
水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。
②固体包裹体：指呈固态相存在包裹体，多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
13Nearly all computer systems have a quartz-crystal clock to regulate their operation.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
There are two these feasible periodic preparations. In Every single, the very first layer has the atoms packed into a plane-triangular lattice in which each and every atom has six fast neighbours. Figure 2 displays this arrangement for that atoms labeled Crystal A
Molecular Crystals: Complete molecules are bonded to each other within an organized way. A fantastic instance is often a sugar crystal, which contains sucrose molecules.
⑦双色水晶：一种紫色和黄色共存一体的水晶，紫色、黄色之间界限较明显，分别占据晶块的一部分。
Binary crystals are located in several buildings. Some pairs of components kind multiple composition. At space temperature, cadmium sulfide could crystallize both inside the zinc blende or wurtzite structure. Alumina also has two probable constructions at space temperature, α-alumina (corundum) and β-alumina. Other binary crystals exhibit unique constructions at distinct temperatures. Among the many most intricate crystals are All those of silicon dioxide (SiO2), that has 7 diverse structures at numerous temperatures and pressures; the commonest of these buildings is quartz.