17These rings are indicative with the crystal structure of nickel and may be spelled out only by invoking wavelike Attributes 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。
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。
③次生包裹体：指主体水晶形成后，由于环境的变化使得主晶周围的一些物质沿裂隙进入到其内部而形成的包裹体。形成的原因有出熔作用、裂隙的结晶化、以及放射性元素破坏的作用等。水晶典型的次生包裹体有胶花水晶中的氧化铁充填物等。
How Crystals Form The whole process of forming a crystal is known as crystallization. Crystallization usually occurs each time a reliable crystal grows from a liquid or solution.
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。
根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
Ionic Crystals: Electrostatic forces form ionic bonds. A vintage illustration is actually a halite or salt crystal.
Quite a few crystals behave like butter in that they're challenging at minimal temperatures but gentle at increased temperatures. They may be called solids at all temperatures under their melting stage. A probable definition of a reliable is surely an item that retains its form if remaining undisturbed. The pertinent situation is just how long the item retains its condition. A really viscous fluid retains its shape for an hour or so although not a calendar year. A good need to maintain its form more time than that.
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⑥、丝印：水晶表面附有不同的色料进行效果处理，颜色层面较厚，着力后方可脱落。
Molecular Crystals: Whole molecules are bonded to one another in an structured fashion. An excellent example can be a sugar crystal, which includes sucrose molecules.
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
Binary crystals are click here located in lots of buildings. Some pairs of features form more than one construction. At space temperature, cadmium sulfide could crystallize either within the zinc blende or wurtzite composition. Alumina also has two probable constructions at room temperature, α-alumina (corundum) and β-alumina. Other binary crystals show distinct constructions at various temperatures. One of the most intricate crystals are People of silicon dioxide (SiO2), which has seven various constructions at numerous temperatures and pressures; the most common of such constructions is quartz.