These crystals were being fashioned in excess of a million years back In the Earth's crust. They happen in the event the liquid during the Earth consolidates and the temperature chills. Other crystals form in the event the liquid will make its way in the clefts and dispense minerals in to the clefts.
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
人造水晶分为熔炼水晶与养殖晶：据水晶专家汪毅的阐述，随着水晶的价值提高，喜欢的人增多，水晶也引起了作伪者的兴趣，现阶段中国水晶市场常见的造假方法为：
The requested inner composition of enormous crystals, such as the fluorite and quartz proven here, is mirrored in their geometric shapes.
《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。”
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30Three days went earlier, and I was amazed to find out it all over again: many of the openings were being sewed up by slim and white thread plus they looked like the ice crystal on Winter season's branches in the north.
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
Amongst the binary crystals, the simplest constructions to visualize are These with equivalent numbers of The 2 different types of atoms. The construction of sodium chloride relies with a dice. To construct the lattice, the sodium and chlorine atoms are put on alternate corners of check here the dice, along with the structure is repeated (Figure 3B).
幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
看孔眼：对于缀穿水晶制品（如项链、手链、佛珠），要看孔眼是否平直，孔的粗细是否均匀，有无细小裂纹。孔壁必须清澈透明，无“白痕”。
The arrangement of the atom’s electrons determines its chemical Attributes. The properties of solids are often predictable within the Homes in their constituent atoms and molecules, and the various shell structures of atoms are for that reason to blame for the range of solids.
压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。
21You all know the way after you take a crystal prism and move a beam of sunlight as a result of it, you can get a spectrum, which seems like a continuous band of rainbow hues.