5 Essential Elements For Crystal
5 Essential Elements For Crystal
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天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。
水晶原石观赏石充分体现了天然水晶的本质，经过抛光的水晶原石观赏石，玲珑剔透、晶莹璀璨，独具匠心的设计，恰到好处地显露出水晶的魅力。如果您想单纯的欣赏水晶，水晶原石观赏石是你的不二之选，给人一种返璞归真的感觉。
A crystal structure concentrates on how the atoms are arranged Within the crystal. Even so, crystallographers are interested in the overall condition and dimension on the crystal along with its exterior attributes. To accomplish this, they need to understand about the crystal procedure.
Add to phrase checklist Include to phrase record C2 [ U ] transparent glass of pretty high quality, generally with its area cut into fragile patterns
看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
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。
光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。
The elements are located in a number of crystal packing preparations. The most typical lattice buildings for metals are These received by stacking the atomic spheres into essentially the most compact arrangement.
Many crystals behave like butter in that they are hard at small temperatures but tender at higher temperatures. They may be termed solids in the slightest degree temperatures underneath their melting stage. A probable definition of a reliable is definitely an object that retains its shape if left undisturbed. The pertinent concern is just how long the item keeps its shape. A very viscous fluid retains its condition for an hour but not a yr. A good have to continue to keep its form for a longer period than that.
Solids which have quick-selection get but lack extensive-selection get are known as amorphous. Virtually any product could be built amorphous by speedy solidification with the melt (molten state). This affliction is unstable, as well as good will crystallize in time. If the timescale for crystallization is decades, then the amorphous state appears steady.
地质学家目前为止对晶洞形成还没有广泛认同的理论，但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴，甚至动物挖的地洞。经过漫长时间，空腔的外壁变硬，溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间，缓慢渗入的矿物使得晶体在空腔内部结晶。
The sodium chloride crystal lattice is characterised because of the shut packing with the beneficial sodium ions and damaging chloride ions. Each and every sodium ion is surrounded by 6 chloride ions, and every chloride ion is surrounded by six sodium ions, creating a remarkably stable and symmetrical composition.
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。
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