8Where will we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球？
Crystals are beautiful rock formations which have stunned individuals for A large number of decades. They may be used for a lot of various things, not only for decoration. A lot of the to start with radios ever invented utilised crystals to transmit the radio waves. Some devices, like quartz watches and laser crystals, use Distinctive Homes and harmonic abilities of crystals to help make remarkably correct measurements and adjustments.
结晶的形状非常细小，需要用显微镜才能看得清楚，外观上看起来是平滑、块状。常见最多的是各式玛瑙
Most solid products present in mother nature exist in polycrystalline type rather then as a single crystal. They are literally composed of an incredible number of grains (tiny crystals) packed jointly to fill all House. Every individual grain has a distinct orientation than its neighbours. Though long-variety order exists inside of a person grain, on the boundary concerning grains, the ordering improvements path. An average piece of iron or copper (Cu) is polycrystalline.
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。
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�?。
30Three days went earlier, and I had been stunned to check out it again: all the openings have been sewed up by slim and white thread they usually looked similar to the ice here crystal on Winter season's branches from the north.
Ionic Crystals: Electrostatic forces variety ionic bonds. A typical case in point can be a halite or salt crystal.
Metallic Crystals: Metals frequently type metallic crystals, the place a lot of the valence electrons are cost-free to move throughout the lattice. Iron, one example is, can form distinct metallic crystals.
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。
地质学家目前为止对晶洞形成还没有广泛认同的理论，但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴，甚至动物挖的地洞。经过漫长时间，空腔的外壁变硬，溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间，缓慢渗入的矿物使得晶体在空腔内部结晶。
Crystal Lattices You can find 7 programs of crystal structures, which are also known as lattices or Place lattices:
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。
Tetragonal �?Characterized by three mutually perpendicular axes, two of which happen to be equal in duration, while the third is longer or shorter and perpendicular to one other two.