17These rings are indicative in the crystal structure of nickel and will be explained only by invoking wavelike Homes of light.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
③、粗抛光：是将模具压出之毛胚，以金刚石盘直接磨出成品之刻线。④、细抛光：在粗抛光之后，以抛光粉来磨成品至晶莹剔透为止。
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 good supplies found in nature exist in polycrystalline form rather then as an individual crystal. They are actually composed of many grains (little crystals) packed with each other to fill all Room. Each individual personal grain has a different orientation than its neighbours. Even though very long-array purchase exists in one grain, at the boundary among grains, the purchasing alterations course. A typical bit of iron or copper (Cu) is polycrystalline.
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
Wise Vocabulary: associated phrases and phrases Glass blower blowpipe bulletproof glass Slice glass fibreglass frosted glassware glaze glazed glazier glazing prism prismatic punty Pyrex reglaze unglazed vitreous vitrification vitrify See additional benefits » It's also possible to discover connected words, phrases, and synonyms in the subject areas:
光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。
Ionic Crystals: Electrostatic forces form ionic bonds. here A classic instance is often a halite or salt crystal.
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
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. The 2nd layer is shaded inside the figure. It's the identical aircraft-triangular framework; the atoms sit while in the holes shaped by the initial layer. The 1st layer has two equal sets of holes, even so the atoms of the next layer can occupy just one established. The third layer, labeled C
There are actually just a few unique device-cell designs, so numerous crystals share only one unit-cell style. An essential attribute of the unit mobile is the volume of atoms it contains. The whole amount of atoms in your complete crystal is definitely the range in Each and every cell multiplied by the quantity of device cells. Copper and aluminum (Al) each have a person atom per device mobile, although zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms per unit cell, but there are numerous exceptions. Crystals of polymers, one example is, have 1000s of atoms in Every unit mobile.
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
This crystal construction is accountable for the exclusive Actual physical and chemical Homes of sodium chloride, which includes its substantial melting point, electrical conductivity, and talent to sort ionic bonds easily.