The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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27Local economists have seemed into their crystal balls and noticed some thing relatively terrible.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。
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 solid components present in character exist in polycrystalline form rather then as an individual crystal. They are literally composed of an incredible number of grains (little crystals) packed jointly to fill all space. Each unique grain has a distinct orientation than its neighbours. Even though very long-variety purchase exists in just 1 grain, in the boundary in between grains, the purchasing improvements route. A typical bit of iron or copper (Cu) is polycrystalline.
You will discover many alternative crystals dependant upon geometric structures, crystal expansion, and materials. There is usually preparations of hexagonal carbon atoms or amethyst which makes hexagonal pyramid structures.
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时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
The elements are identified in many different crystal packing preparations. The most typical lattice constructions for metals are Individuals acquired by stacking the atomic spheres into essentially the most compact arrangement.
Metallic Crystals: Metals generally type metallic crystals, where by many of the valence electrons are cost-free to move throughout the lattice. Iron, one example is, can variety different metallic crystals.
晶体 Silicon crystals developed within a laboratory convert light-weight into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。
16I opened the box and observed a piece of crystal snowflake and a greeting card with "Pleased Birthday" while in the blank here paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
国家还并未给天然水晶提供一个等级划分的具体标准，水晶品种繁杂，每一品种都有他不同的评判标准。
水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。
水晶观赏石是天然水晶中最具代表的作品，具有其他宝石都不具备的观赏性。不论是玉石翡翠还是都要经过雕琢后次能体现他的价值，而水晶观赏石只需要将表面进行抛光，即展现出晶体内所包裹的物质，直接欣赏原汁原味的水晶石。