Not known Details About Crystal

Not known Details About Crystal

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看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。

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 teams of atoms in crystals rely upon their measurement and electronegativity. There are actually four categories of crystals as grouped by their bonding:

Big crystals of diamond are valuable gemstones. The crystal has other interesting properties; it's got the highest audio velocity of any good and is the greatest conductor of warmth. In addition to diamond, another common form of carbon is graphite, which happens to be a layered material. Every carbon atom has a few coplanar close to neighbours, forming an arrangement called the honeycomb lattice. 3-dimensional graphite crystals are acquired by stacking comparable layers.

Crystalline structure is characterized by a geometrical, repeating sample of symmetric molecular framework. The arrangement of atoms kinds these purchased, repeating designs.

发晶，包括钛晶，铜顺发，绿发晶，黑发晶，银发晶，杂色发晶，其中钛晶最珍贵，少数钛晶价值可比钻石，红宝石和蓝宝石以及祖母绿。

Crystals glance exceptional from a number of other rocks and minerals, but �?barring several Unique scenarios �?nearly all minerals hide a crystalline framework beneath the surface.

26Some of the finest ingesting Eyeglasses are comprised of 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》

水晶包裹体丰富多彩，从气体、液体到各种矿物质，甚至宝石，均可被包含于水晶内，各种包裹体所形成的景象更是变化万千。按照包裹体的内容，常把包裹体水晶分为一下八类：

Solids which have small-range order but deficiency very long-variety order are referred to as amorphous. Practically any content might be made amorphous by immediate solidification with the melt (molten condition). This problem is unstable, as well as strong will crystallize in time. When the timescale for crystallization is a long time, then the amorphous state appears stable.

15The trick to a fantastic thermoelectric product can be a crystal composition through which electrons can stream freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。

The arrangement of an atom’s electrons establishes its chemical Houses. The Houses of solids are usually predictable within the Attributes in their constituent atoms and molecules, and the various shell structures of atoms are thus to blame for the variety of solids.

14For illustration, We have now Quartz crystal clocks and watches accurate to inside of one moment read more a yr.例如，我们使用的每年误差不超过one分钟的石英水晶钟表和手表。

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。