5 Essential Elements For Crystal
5 Essential Elements For Crystal
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轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
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。
人造水晶分为熔炼水晶与养殖晶：据水晶专家汪毅的阐述，随着水晶的价值提高，喜欢的人增多，水晶也引起了作伪者的兴趣，现阶段中国水晶市场常见的造假方法为：
The ordered internal structure of enormous crystals, such as fluorite and quartz revealed right here, is reflected of their geometric designs.
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
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⑦、镀彩：运用类似电镀的手法在水晶表面以不同的色彩，层面较薄，经摩擦可划伤�?；出现划痕，由于镀彩经常位于底部，因此在镀彩底部经常采用其它对象附着，如生肖文镇。
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24I need to make my indicating crystal very clear.我想把我的意思解释得清清楚楚。《牛津词典》
颜色：无色，浅至深的紫色，浅黄、中至深黄色，浅至深褐、棕色，绿至黄绿色，浅至中粉红。
. The second layer is shaded within the figure. It's the identical plane-triangular construction; the atoms sit while in the holes fashioned by the initial layer. The initial layer has two equivalent sets of holes, however the atoms of the second layer can occupy only one set. The 3rd layer, labeled C
The sodium chloride crystal lattice is characterised from the shut packing in the favourable sodium ions and unfavorable chloride ions. Just about every sodium ion is surrounded by six chloride ions, and each chloride ion is surrounded by six sodium ions, creating a really stable and symmetrical construction.
crystal, any sound substance where the part atoms are organized in a definite pattern and whose area regularity displays its internal symmetry.
Yet another kind of crystalline carbon is predicated on the molecule with sixty carbon atoms named buckminsterfullerene (C60). The molecular condition is spherical. Every single carbon is bonded to Crystal a few neighbours, as in graphite, and also the spherical condition is accomplished by a mix of twelve rings with 5 sides and 20 rings with six sides. Related buildings were initial visualized because of the American architect R. Buckminster Fuller for geodesic domes.