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。
12He experimented with again in several other metropolitan areas and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
发晶的价值取决于发的颜色、罕见性及大小，一般是发色鲜艳、块度大的价格高。水胆水晶的价值主要取决于水胆及晶体的大小、透明度的高低。如果水胆较大并有一定形态，便可加工成较为珍贵的工艺品。另外水胆中的水也有一定的科学研究价值，通过它们可了解几百万年前地球上水的成分及变化。
Most reliable components present in mother nature exist in polycrystalline variety as opposed to as a single crystal. They are literally made up of an incredible number of grains (smaller crystals) packed collectively to fill all space. Every single specific grain has a unique orientation than its neighbours. Even though prolonged-selection buy exists within just one grain, within the boundary among grains, the buying improvements way. An average bit of iron or copper (Cu) is polycrystalline.
. These 4 buildings comprise the vast majority of binary crystals with equivalent figures of cations and anions.
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�?。
石英：《广雅》称水晶叫石英，色白如莹者又叫白。为附的异形字。司马相如《子虚赋》就�?�?雌黄�?�?之句。苏林解释：�?�?，白石英�?”。
Crystals is usually grown beneath reasonable circumstances from all ninety two Obviously taking place factors apart from helium, and helium could be crystallized at minimal temperatures by making use of 25 atmospheres of strain.
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：
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
. The 2nd layer is shaded from the figure. It's the identical aircraft-triangular construction; the atoms sit within the holes formed by the very first layer. The first layer has two equal sets of holes, nevertheless the atoms of the next layer can occupy only one set. The 3rd layer, labeled C
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
crystal, any solid product where the component atoms are arranged inside a definite sample and whose floor regularity demonstrates its internal symmetry.
The C60 molecules, also called buckyballs, are fairly sturdy and almost incompressible. Crystals are shaped this kind of which the balls are organized within an fcc lattice with a one particular-nanometre spacing concerning the centres of adjacent balls. The comparable C70 molecule has the shape of a rugby ball; C70 molecules also variety an fcc crystal when more info stacked with each other. The stable fullerenes sort molecular crystals, with weak binding—provided by van der Waals interactions—among the molecules.