27Local economists have appeared into their crystal balls and noticed a little something relatively terrible.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
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 kinds of chemical bonds shaped involving atoms or teams of atoms in crystals rely on their measurement and electronegativity. You can find four classes of crystals as grouped by their bonding:
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断口：贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂，破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
Monoclinic �?Characterized by a few unequal axes, two of which intersect at an oblique angle, when the third is perpendicular towards the airplane of the other two.
光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。
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》
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
颜色：无色，浅至深的紫色，浅黄、中至深黄色，浅至深褐、棕色，绿至黄绿色，浅至中粉红。
15The trick to a fantastic thermoelectric substance is actually a crystal construction by which electrons can circulation 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 Attributes. The Houses more info of solids tend to be predictable with the Homes in their constituent atoms and molecules, and different shell structures of atoms are therefore to blame for the diversity of solids.
crystal, any stable material by which the ingredient atoms are arranged in a very definite pattern and whose area regularity reflects its interior symmetry.
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。