The Basic Principles Of Crystal
The Basic Principles Of Crystal
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对这类水晶晶簇观赏石的欣赏与评价，主要是强调晶体的完整、品种的名贵（如紫水晶、烟晶、发晶等）、造型奇特、含有名贵晶体（如辰砂、辉锑矿等）伴生等。晶簇产于矿床晶洞中，长相完美的并不多见，要完整无损地采集下来，又比较困难，故而采集起来代价较大，精品晶簇价值也就昂贵了。
Bismuth (Bi) appears to generally be a metal, but the quantity of electrons readily available for electrical conduction is comparable to that of semiconductors. The truth is, bismuth is termed a semimetal. Molecular solids are generally crystals formed from molecules or polymers. They are often insulating, semiconducting, or metallic, according to the variety of molecules during the crystal. New molecules are consistently staying synthesized, and lots of are created into crystals. The quantity of distinctive crystals is enormous.
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。
Add to word list Include to word record C2 [ U ] transparent glass of really premium quality, ordinarily with its floor Slice into delicate styles
25If you are a Billy Crystal admirer, you can like this movie.如果你是比利·克里斯特尔的影迷，你就会喜欢这部电影。《柯林斯英汉双解大词典》
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Incorporate to phrase listing Include to word record [ C/U ] transparent rock that looks like ice, or a bit of it
Crystals are absolutely nothing over an purchased arrangement of molecules or atoms. Crystals are available in a number of shapes and sizes, and each has unique features. What they are made of establishes how it will type.
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Crystals with noticeable flat faces are named euhedral crystals, even though All those lacking described faces are identified as anhedral crystals. Crystals consisting of purchased arrays of atoms that aren't always periodic are identified as quasicrystals.
15The trick to an excellent thermoelectric content is often a crystal structure through which electrons can flow freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
The construction in the sodium atoms by itself, or maybe the chlorine atoms by itself, is fcc and defines the unit mobile. The sodium chloride framework Hence is built up of two interpenetrating fcc lattices. The cesium chloride Crystal lattice (Figure 3A) relies on the bcc structure; each individual other atom is cesium or chlorine. In cases like this, the device mobile can be a dice. The 3rd important composition for AB
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