Crystal Fundamentals Explained
Crystal Fundamentals Explained
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李商隐,杜牧,白居易,欧阳修,苏轼,呈大昌,辛弃疾,杨万里,吴文英,杨基,魏源等诗坛,词林大家都有歌吟水晶的佳篇传世。
杂质、裂纹越少越好。质地好的水晶制品,应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点,则属于次品。
看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音像、内画鼻烟壶等属于雕刻品。
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。
You'll find numerous crystals based on geometric buildings, crystal progress, and substance. There may be preparations of hexagonal carbon atoms or amethyst which makes hexagonal pyramid buildings.
, has the exact same composition, but there are two possibilities for choosing the holes the atoms will occupy. The 3rd layer can be positioned in excess of the atoms of the main layer, building an alternate layer sequence A
⑩、雷射内雕:以计算机辅助激光设备在水晶对象中进行三维图案的成型,艺术效果好,可以任意表达各类图案,图形,达到逼真效果
26Some of the best drinking glasses are produced from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
Q.four. What is the distinction between atomic structure and crystal composition? Ans. The main distinction between atomic construction and crystal framework lies within their definitions: atomic structure refers to how atoms are structured in a one molecule or even a cluster of molecules, whereas crystal construction worries the precise arrangement of atoms inside of a sound compound.
Solids which have more info shorter-vary get but deficiency very long-assortment order are named amorphous. Pretty much any substance can be manufactured amorphous by speedy solidification from your soften (molten condition). This ailment is unstable, and the sound will crystallize in time. When the timescale for crystallization is a long time, then the amorphous point out appears secure.
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。
国家还并未给天然水晶提供一个等级划分的具体标准,水晶品种繁杂,每一品种都有他不同的评判标准。
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。
This crystal structure is to blame for the special Bodily and chemical Qualities of sodium chloride, which include its superior melting stage, electrical conductivity, and talent to form ionic bonds very easily.