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) seems for being a metallic, but the quantity of electrons available for electrical conduction is comparable to that of semiconductors. In truth, bismuth is called a semimetal. Molecular solids are frequently crystals formed from molecules or polymers. They are often insulating, semiconducting, or metallic, dependant upon the sort of molecules during the crystal. New molecules are continually remaining synthesized, and several are made into crystals. The volume of different crystals is big.
结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙
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根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
Monoclinic �?Characterized by 3 unequal axes, two of which intersect at an oblique angle, though the 3rd is perpendicular to your aircraft of the other two.
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。
1A crystal chandelier lit the room.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
crystal The recently crystallized quartz grains are characterised by elongate crystals oriented oblique to your shear band margins, defining a normal grain-shape foliation. 来自 Cambridge English Corpus We say the chain topology during the superior w area functions since the proverbial ' scratch-on-theglass ' wanted during the organic chemistry laboratory to help make crystals. 来自 Cambridge English Corpus The age scatter among the the person crystals may reflect incorporation of xenocrysts from previously magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene kinds neutral to pale brown, subhedral to anhedral crystals, occasionally that contains inclusions of plagioclase microlaths and opaque phases.
say cheese something which somebody who is having a photograph of you lets you know to convey so that the here mouth helps make the shape of the smile
水晶形成后由于外力作用或某种人为原因使水晶产生大的裂隙或裂纹，这种裂纹有大有小，对水晶的影响也有大小之分。
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This crystal structure is to blame for the distinctive Actual physical and chemical Qualities of sodium chloride, together with its large melting point, electrical conductivity, and talent to type ionic bonds simply.