看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。

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晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。

第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。

You will discover many alternative crystals based upon geometric constructions, crystal growth, and product. There could be arrangements of hexagonal carbon atoms or amethyst that makes hexagonal pyramid structures.

Lattices can have a single lattice place for every mobile or multiple, yielding a complete of fourteen Bravais crystal lattice varieties. Bravais lattices, named for physicist and crystallographer Auguste Bravais, explain the three-dimensional array created by a list of discrete points.

Crystals glance exceptional from many other rocks and minerals, but �?barring several special circumstances �?nearly all minerals disguise a crystalline structure underneath the surface area.

Crystals are nothing at all in excess of an purchased arrangement of molecules or atoms. Crystals can be found in numerous sizes and shapes, and each has distinct qualities. Whatever they are created of establishes how it'll form.

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晶体 Silicon crystals developed in the laboratory convert gentle into electrical Vitality. 在实验室中长成的硅晶体可将光线转变为电能。

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”。

正常的水晶在生长时，多可以发现和柱形尖端棱线平行的生长纹（progress lines）。由于在地底、岩洞中的生长空间多狭窄，尤其在遇到地震时，或地壳变动时，甚至容易遭到其他矿石的挤压，常常会压迫产生不同的「晶面」。还有，当水晶还是在液态状的时候，常常也会包覆着其他的矿石、泥灰一起结晶成长，如金红石（稍后变成发晶）、火山泥灰（稍后变成幻影水晶）等等。所有的这些，都是「自然的一部分」，请不要视为「瑕疵」。

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。

This crystal composition is answerable for the one of a kind Bodily and chemical Qualities of sodium chloride, like its large melting point, electrical conductivity, and talent click here to form ionic bonds conveniently.