Crystal Secrets
Crystal Secrets
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This concept applies equally in a single, two, and 3-dimensional Areas. The complete crystal lattice may be made by frequently reproducing the sample of the unit mobile in all Instructions.
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
一般而言，紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅，颜色较深的为A级，稍浅的为B级。一般颜色较深的价格高，但要以不深暗为标准。颜色包括两种，一种是水晶本身的颜色，另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正，分布要均匀，不能太深或太浅，如澳州玉、蓝玉髓、紫晶、黄水晶，其价格就高。无色的水晶内含包裹体的颜色艳丽，其价格也高，如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。
Most stable products located in nature exist in polycrystalline variety in lieu of as just one crystal. They are actually composed of a lot of grains (compact crystals) packed with each other to fill all House. Just about every personal grain has a distinct orientation than its neighbours. While very long-array order exists within just one particular grain, for the boundary between grains, the purchasing adjustments direction. A normal bit of iron or copper (Cu) is polycrystalline.
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。
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水晶原石观赏石，从字面意义理解：观赏水晶石的原貌，即经过抛光去皮后的包裹体水晶和原色水晶，不需雕刻不求象形就具有非常高的观赏价值和收藏价值。此类水晶观赏石对质地要求非常之高，水晶晶体通透干净，颜色艳丽，意境鲜明深刻的价值就高，它的价值特点就好比钻石，实实在在石头本身的价值。
26Some of the finest consuming Eyeglasses are produced from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
crystal The freshly crystallized quartz grains are characterised by elongate crystals oriented oblique to the shear band margins, defining a normal grain-shape foliation. 来自 Cambridge English Corpus We are saying the chain topology from the high w area acts as the proverbial ' scratch-on-theglass ' desired while in the organic and natural chemistry laboratory to create crystals. 来自 Cambridge English Corpus The age scatter among the the person crystals may well reflect incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene kinds neutral to pale brown, subhedral to anhedral crystals, from time to time made up of inclusions of plagioclase microlaths and opaque phases.
用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。
Molecular Crystals: Complete molecules are bonded to each other in an structured method. A fantastic instance is a sugar crystal, which is made up of sucrose molecules.
The construction in the sodium atoms alone, or perhaps the chlorine atoms by yourself, is fcc and defines here the device mobile. The sodium chloride composition As a result is created up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) relies to the bcc composition; just about every other atom is cesium or chlorine. In such cases, the device cell can be a dice. The third important construction for AB
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