Facts About Crystal Revealed
Facts About Crystal Revealed
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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。
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。
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
Significant crystals of diamond are beneficial gemstones. The crystal has other attention-grabbing Qualities; it's got the highest seem velocity of any sound and is the greatest conductor of warmth. Moreover diamond, one other prevalent form of carbon is graphite, which is a layered material. Every carbon atom has three coplanar in the vicinity of neighbours, forming an arrangement known as the honeycomb lattice. A few-dimensional graphite crystals are received by stacking related levels.
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。
They'll eventually create a awesome tiny uniform cluster of atoms, this is the entire process of expanding crystals. The more they could arrive jointly, the more of the formation will probably be seen into the naked eye. Scientists can decide what mineral These are looking at by how the crystals form.
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。
26Some of the finest consuming glasses are made from guide 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》
13Nearly all personal computers include a quartz-crystal clock to regulate their Procedure.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
A crystal program refers back to the classification of crystals depending on the geometric arrangement and symmetry in their lattice constructions. There are seven primary crystal programs:
16I opened the box and observed a bit of crystal snowflake as well as a greeting card with "Joyful Birthday" from 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。
Crystals are not merely renowned for his or her Actual physical physical appearance, but unique crystals of various products and formations may lead to a vast selection of employs and Bodily Homes.
The composition from the sodium atoms by itself, or maybe the chlorine atoms by yourself, is fcc and defines the device cell. The sodium chloride composition As a result is designed up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) is predicated over the bcc construction; each other atom more info is cesium or chlorine. In such a case, the unit mobile is usually a dice. The third significant construction for AB
⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。