Not known Details About Crystal
Not known Details About Crystal
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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。
Chemical Bonds The types of chemical bonds shaped among atoms or groups of atoms in crystals rely on their dimensions and electronegativity. You'll find 4 categories of crystals as grouped by their bonding:
第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
第二种是“半包裹体”，在水晶结晶以后，由于受到地球引力的影响而产生的裂隙，晶体外的一些物质通过水晶的裂隙渗透到水晶内部，一部分包裹于水晶之中另一部分露于水晶之外。我们可以看到物质渗进水晶的裂迹，常被称为“通道”，这种包裹体所形成的景象相对地较受自然环境和时间的影响，相应的价值也比较�?。
Increase to term listing Increase to word list [ C/U ] transparent rock that appears like ice, or maybe a bit of it
发晶：无色、浅黄、浅褐等，可因含金红石常呈金黄、褐红等色，含电气石常呈灰黑色；含阳起石而呈灰绿色。
Q.four. What is the distinction between atomic framework and crystal construction? Ans. The key difference between atomic framework and crystal construction lies inside their definitions: atomic framework refers to how atoms are structured inside of a one molecule or simply a cluster of molecules, While crystal structure fears the particular arrangement of atoms within a reliable compound.
多色�?无色水晶没有多色性。有色水晶有弱到强的多色�?表现为体色的不同深浅。
16I opened the box and saw a bit of crystal snowflake as well as a greeting card with "Happy Birthday" in 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。
There are just a few various unit-cell designs, so a number of crystals share a single unit-cell variety. A click here significant attribute of the device mobile is the volume of atoms it contains. The overall range of atoms in the entire crystal is definitely the number in Each and every mobile multiplied by the volume of device cells. Copper and aluminum (Al) Every have a single atom per device mobile, when zinc (Zn) and sodium chloride have two. Most crystals have only some atoms for every unit mobile, but there are a few exceptions. Crystals of polymers, for instance, have Many atoms in Just about every device cell.
压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。
对于紫水晶黄水晶这样的单色水晶，通常要观察它的二色性，即使是最顶级的紫水晶黄水晶也是有色差的，通过这个方法可以鉴别是否加色。