Crystal for Dummies
Crystal for Dummies
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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。
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。
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。
Tetragonal: These crystals type prisms and double pyramids. The composition is sort of a cubic crystal, except a person axis is for a longer period than another.
How Crystals Type The process of forming a crystal is named crystallization. Crystallization frequently happens whenever a good crystal grows from a liquid or solution.
Not all crystals form in h2o, but almost all crystals kind exactly the same way, atoms come jointly and become a uniformed cluster. The procedure normally takes as very little as a couple of days to perhaps a thousand decades. Natural crystals that originate from the Earth type exactly the same way.
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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。
One of the binary crystals, the simplest constructions to visualize are All those with equivalent numbers of the two different types of atoms. The composition of sodium chloride is predicated on the cube. To construct the lattice, the sodium and chlorine atoms are put on alternate corners of a cube, and also the composition is recurring (Determine 3B).
A crystal technique refers to the classification of crystals determined by the geometric arrangement and symmetry in their lattice constructions. There are actually seven most important crystal methods:
Single crystals of metals are smooth and malleable, even though polycrystalline metals are more difficult and more robust and are more helpful industrially. Most polycrystalline components might be made into significant solitary crystals just after prolonged warmth therapy. Up to now blacksmiths would heat a piece of metallic to really make it malleable: heat will make a few grains increase massive by incorporating smaller sized ones. The smiths would bend the softened metal into shape and after that pound it awhile; the pounding would make it polycrystalline once again, increasing its energy.
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
The construction on the sodium atoms on your own, or even the chlorine atoms by itself, is fcc and defines the device cell. The sodium chloride composition As a result is created up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) is predicated over the bcc composition; each other atom is cesium or chlorine. In such a case, the unit cell can be a cube. The third significant composition for AB
Clever Vocabulary: related words and phrases and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See more outcomes » You may as well come across relevant terms, phrases, and synonyms more info in the subjects: