New Step by Step Map For Crystal
New Step by Step Map For Crystal
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This concept applies Similarly in one, two, and 3-dimensional Areas. The whole crystal lattice could be constructed by frequently reproducing the sample from the unit mobile in all Instructions.
按照透明度指标，水晶越透明，价格越高，好的透明的水晶加工出的成品晶莹剔透、光辉耀眼。透明度高的水晶能提升颜色的艳丽，否则显得呆板无灵性。光学水晶要求全透明、无双晶、无杂质。工艺水晶要求透明、少裂、少瑕疵。熔炼水晶要求透明，可有较多裂纹。三者价值依次降低，熔炼水晶只能作为熔炼水晶玻璃的原料。在工艺水晶中，晶体较大的，可用来做水晶眼镜和雕刻高档工艺品，因而价格较高。
Chemical Bonds The kinds of chemical bonds fashioned between atoms or teams of atoms in crystals rely upon their size and electronegativity. You will discover 4 types of crystals as grouped by their bonding:
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。
Crystalline structure is characterized by a geometric, repeating sample of symmetric molecular construction. The arrangement of atoms varieties these ordered, repeating styles.
Monoclinic �?Characterised by 3 unequal axes, two of which intersect at an oblique angle, though the third is perpendicular to the plane of the opposite two.
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
Being a sizzling Resolution cools or maybe a saturated Alternative evaporates, particles attract shut ample for chemical bonds to sort. Crystals might also sort from deposition straight from the gas section. Liquid crystals have particles oriented in an arranged manner, like reliable crystals, but are able to flow.
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
. The second layer is shaded in the figure. It's got a similar airplane-triangular framework; the atoms sit in the holes shaped by the primary layer. The 1st layer has two equal sets of holes, however the atoms of the 2nd layer can occupy just one set. The third layer, labeled C
Molecular Crystals: Total molecules are bonded to each other in an organized manner. 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。
crystal Alteration is variable: absent in many crystals, in Other folks developing dense sericite aggregates which may show some recrystallization effects to create coarser-grained white mica. Within the Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are occasionally arranged in aggregates. In the Cambridge English Corpus Moreover, haloarchaeal cells had been embedded in salt crystals beneath laboratory problems and subsequently analysed by light microscopy. In the Cambridge English Corpus The white clouds (normally sparse) had been also widely considered to be getting made up of small crystals of h2o ice, somewhat like cirrus inside our atmosphere. Within the Cambridge English Corpus They are really found in evaporite salt lakes and will be trapped in salt crystals throughout evaporation. Within the Cambridge English Corpus For that reason, the cells (organelles and membranes) are ruined mechanically by ice crystals, resulting in Demise here by means of cell lysis. Within the Cambridge English Corpus The crystals had been Employed in the main or next orders of reflection. In the Cambridge English Corpus In our 8xperiments, the crystals were cubes having a base spot of eight e mm. Through the Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : outcome of temperature and tension.