How Much You Need To Expect You'll Pay For A Good Crystal
How Much You Need To Expect You'll Pay For A Good Crystal
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水晶表面坑洼的地方,有的深,有的浅,这是水晶在成长过程中自然形成的,并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体,由于包裹体和水晶结合部位的结合力不强,当表面抛光时,矿体脱落,留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常见。
23Sometimes, nevertheless, the crystal sort of the silicate inclusions is observed to resemble additional closely The interior composition of diamond than that of other silicate minerals.然而,有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
4Without a crystal ball, It can be difficult to say wherever we'll be up coming year.不用水晶球预卜未来,我们说不准明年处境如何呀。《牛津词典》
养殖晶:养殖晶是指,用天然水晶做种子,然后赋予天然水晶生长的高压条件,养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长,这样的水晶成分(分子式)与天然水晶是一摸一样的,唯一有差别的是,这样的水晶磁场作用没有天然水晶强。
C2 [ U ] clear glass of quite premium quality, typically with its floor cut into fragile designs:
⑧、雕刻:立体感强,工艺高,做工精细,成本高。分手工雕刻图形、机器雕刻文字。
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。
The weather are identified in many different crystal packing arrangements. The most common lattice constructions for metals are Those people acquired by stacking the atomic spheres into probably the most compact arrangement.
Metallic Crystals: Metals generally variety metallic crystals, wherever a number of the valence electrons are totally free to move all through the lattice. Iron, such as, can variety unique metallic crystals.
晶体 Silicon crystals grown within a laboratory transform mild into electrical Electrical power. 在实验室中长成的硅晶体可将光线转变为电能。
16I opened the box and noticed a bit of crystal snowflake website and a greeting card with "Pleased Birthday" within the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
隐晶类水晶外观是一块块的,不是成六角水晶簇状,但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶,因为结晶的体积极为细小,需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑,因为结晶之间有“水化硅石”填补,玛瑙便属于此类。
《古今小说·李公子救蛇获称心》:“器皿皆是玻璃、水晶、琥珀、玛瑙为之,曲尽巧妙,非人间所有。”
The C60 molecules, also known as buckyballs, are fairly potent and Virtually incompressible. Crystals are fashioned such that the balls are arranged within an fcc lattice with a one-nanometre spacing between the centres of adjacent balls. The very similar C70 molecule has The form of a rugby ball; C70 molecules also sort an fcc crystal when stacked alongside one another. The reliable fullerenes variety molecular crystals, with weak binding—furnished by van der Waals interactions—concerning the molecules.