Crystal Fundamentals Explained

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 steel, but the quantity of electrons available for electrical conduction is similar to that of semiconductors. In reality, bismuth is termed a semimetal. Molecular solids are often crystals formed from molecules or polymers. They can be insulating, semiconducting, or metallic, depending upon the kind of molecules in the crystal. New molecules are continually getting synthesized, and several are made into crystals. The number of distinctive crystals is gigantic.

对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正,浓度较高,内部无瑕为好。种类上紫晶最贵,其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。

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断口:贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂,破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。

Lattices may have just one lattice stage for every cell or more than one, yielding a total of 14 Bravais crystal lattice styles. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the 3-dimensional array made by a list of discrete details.

⑦、镀彩:运用类似电镀的手法在水晶表面以不同的色彩,层面较薄,经摩擦可划伤�?;出现划痕,由于镀彩经常位于底部,因此在镀彩底部经常采用其它对象附着,如生肖文镇。

The weather are discovered in a number of crystal packing preparations. The commonest lattice buildings for metals are People attained by stacking the atomic spheres into probably the most compact arrangement.

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Solids that have brief-assortment buy but deficiency very long-array order are referred to as amorphous. Pretty much any materials could be created amorphous by quick solidification from your melt (molten condition). This affliction is unstable, plus the strong will crystallize in time. In case the timescale for crystallization is decades, then the amorphous state appears stable.

天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值,但是包裹体水晶观赏石经常需要适当打磨抛光,这样更方便观赏水晶内部的包裹体。

Molecular Crystals: Total molecules are bonded to each other within an organized way. A very good example is a sugar crystal, which consists of sucrose molecules.

⑨、喷砂:立体感弱,较平整,无凹凸感,机器雕刻文字、图形等后进行效果处理。成本低制作快。

Binary crystals are present more info in quite a few structures. Some pairs of factors kind multiple structure. At place temperature, cadmium sulfide may well crystallize both while in the zinc blende or wurtzite framework. Alumina also has two attainable constructions at place temperature, α-alumina (corundum) and β-alumina. Other binary crystals exhibit distinct buildings at unique temperatures. Amongst the most sophisticated crystals are All those of silicon dioxide (SiO2), which has seven diverse constructions at a variety of temperatures and pressures; the most common of such constructions is quartz.

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