Facts About Crystal Revealed

Facts About Crystal Revealed

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17These rings are indicative on the crystal framework of nickel and might be described only by invoking wavelike properties of sunshine.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。

结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙

看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。

这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。

Not all crystals type in drinking water, but almost all crystals sort precisely the same way, atoms come alongside one another and become a uniformed cluster. The method can take as tiny as a few days to perhaps a thousand years. Organic crystals that come from the Earth type the same way.

解理：无解理。所谓解理是指矿物被打击时，沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类：极完全解理、完全解理、中等解理、不完全解理和无解理，水晶属于无解理。

Ionic Crystals: Electrostatic forces kind ionic bonds. A classic case in point can be a halite or salt crystal.

Several crystals behave like butter in that they are hard at minimal temperatures but gentle at larger temperatures. They are really named solids whatsoever temperatures under their melting place. A doable definition of the sound can be an object that retains its form if remaining undisturbed. The pertinent problem is just how long the item keeps its form. A really viscous fluid retains its condition for one hour but not a calendar year. A reliable will have to check here continue to keep its condition longer than that.

The definition of the stable appears apparent; a strong is normally thought of as becoming hard and organization. On inspection, nevertheless, the definition results in being a lot less simple. A cube of butter, by way of example, is hard right after becoming saved inside a fridge and is Plainly a reliable. After remaining over the kitchen counter for per day, the identical dice results in being really comfortable, and it can be unclear Should the butter should really still be viewed as a solid.

天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。

Fig. 1: Schematic of crystal formation from building blocks made up of a particle Main and a shell of DNA ligands attached into the particle area.

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。

The C60 molecules, also called buckyballs, are quite powerful and Pretty much incompressible. Crystals are formed these that the balls are arranged in an fcc lattice with a a single-nanometre spacing concerning the centres of adjacent balls. The very similar C70 molecule has The form of a rugby ball; C70 molecules also form an fcc crystal when stacked alongside one another. The solid fullerenes variety molecular crystals, with weak binding—provided by van der Waals interactions—between the molecules.