Crystal Can Be Fun For Anyone
Crystal Can Be Fun For Anyone
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诗中“胜美玉”，“过冰清”，写出水晶的质地美，而“亦欲应时明”则描绘出水晶充满灵性的动态美，耐人寻味。罗维是有独特眼光，懂得水晶真谛，第一个称赞水晶超过美玉的伟大诗人。他的认识已被千年之后的科学理论所证实；以水晶为直接吟咏对象的诗篇还有：
Crystals are attractive rock formations that have astonished people for A large number of yrs. They're useful for several different things, not just for decoration. Lots of the to start with radios ever invented utilised crystals to transmit the radio waves. Some devices, like quartz watches and laser crystals, use Specific Attributes and harmonic abilities of crystals for making hugely exact measurements and adjustments.
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。
Massive crystals of diamond are useful gemstones. The crystal has other intriguing Qualities; it's the best sound velocity of any sound and is the best conductor of warmth. In addition to diamond, one other frequent method of carbon is graphite, which happens to be a layered product. Every carbon atom has three coplanar near neighbours, forming an arrangement called the honeycomb lattice. A few-dimensional graphite crystals are obtained by stacking very similar layers.
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
无色水晶与无色长石因折射率和密度十分接近故较难区分。主要方法是放大检查。长石有两组极完全解理，显微镜下可见两组解理相交而成的“娱蛤状”包裹体或细直的纹理，而水晶则无解理发育，仅有时可见断续不规则的裂理。
解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。
1A crystal chandelier lit the space.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
24I intend to make my that means crystal crystal clear.我想把我的意思解释得清清楚楚。《牛津词典》
英语-中文（简体） phrase #beta Beta /beta #preferredDictionaries ^chosen title /chosen /preferredDictionaries
. The second layer is shaded from the determine. It's exactly the same aircraft-triangular construction; the atoms sit within the holes fashioned by the very first layer. The initial layer has two equivalent sets of holes, although the atoms of the second layer can occupy only one set. The third layer, labeled C
Molecular Crystals: Complete molecules are bonded to each other within an organized way. A very good case in point is really a sugar crystal, which has sucrose molecules.
The framework from the sodium atoms alone, or the chlorine atoms alone, is fcc and defines the device cell. The sodium chloride construction So is designed up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) is predicated about the bcc framework; just about every other atom is cesium or chlorine. In such a case, the unit cell is often a here cube. The 3rd essential composition for AB
矿物成分：针铁矿、赤铁矿、金红石、磁铁矿、电气石、石榴石、云母、绿泥石等形成了包裹体水晶，如发晶、钛晶、绿幽灵等，发晶中则含有肉眼可见的似头发状的针状矿物的包裹体形成。含锰和铁者称紫水晶；含铁�?；呈金黄色或柠檬�?)称黄水晶；含锰和钛呈玫瑰色者称蔷薇石英，即粉水晶；烟色者称烟水晶；褐色者称茶晶；黑色透明者称为墨晶。