This concept applies Similarly in a single, two, and 3-dimensional Areas. The entire crystal lattice is usually made by regularly reproducing the pattern with 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。
A fundamental concept in crystal constructions is definitely the unit cell. It is the smallest unit of volume that permits identical cells to become stacked collectively to fill all space. By repeating the pattern of the unit cell again and again in all Instructions, all the crystal lattice is often created. A dice is The best illustration of a device cell. Two other examples are revealed in Determine one. The very first is definitely the unit cell for any encounter-centred cubic lattice, and the 2nd is to get a entire body-centred cubic lattice. These buildings are explained in the following paragraphs.
We've penned about above 300 stones during the mineral kingdom! Read click here about each stone's special origin, history, and energies down below.
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
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�?。
Crystals look distinctive from many other rocks and minerals, but �?barring a couple of Distinctive scenarios �?nearly all minerals hide a crystalline construction beneath the surface.
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。
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
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。
Solitary crystals of metals are tender and malleable, though polycrystalline metals are harder and stronger and are more helpful industrially. Most polycrystalline supplies may be made into large one crystals right after extended warmth treatment. Up to now blacksmiths would warmth a piece of metallic to really make it malleable: heat makes a number of grains increase huge by incorporating smaller sized ones. The smiths would bend the softened metal into condition after which you can pound it awhile; the pounding would ensure it is polycrystalline all over again, escalating its toughness.
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal obvious idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
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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。