天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。

One more exciting, and delicious, experiment is always to sort significant crystals applying sugar. By heating sugar with water after which you can letting this Option evaporate on sticks, it is possible to kind rock candy from sugar crystals!

A primary idea in crystal structures may be the unit cell. It is the smallest device of volume that permits identical cells to be stacked together to fill all House. By repeating the sample of your device mobile repeatedly in all directions, your entire crystal lattice is usually built. A cube is The best illustration of a device cell. Two other illustrations are demonstrated in Figure one. The 1st could be the device mobile for the confront-centred cubic lattice, and the next is for a overall body-centred cubic lattice. These constructions are discussed in the subsequent more info paragraphs.

Include to term list Add to term list C2 [ U ] clear glass of very premium quality, ordinarily with its area Minimize into fragile patterns

2She was putting on a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》

结晶�?When sea water is permitted to evaporate, salt crystals are deposited. 海水蒸发后，盐的结晶体就沉淀下来。

水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。

There exists a equivalent directive about crystal glass which differentiates between full direct crystal, lead crystal and crystal.

仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。

Solids which have shorter-vary buy but absence very long-array buy are identified as amorphous. Nearly any content is often manufactured amorphous by fast solidification in the melt (molten point out). This ailment is unstable, along with the reliable will crystallize in time. When the timescale for crystallization is many years, then the amorphous state seems stable.

say cheese something which someone who is getting a photograph of you informs you to convey so that your mouth helps make the shape of a smile

Fig. one: Schematic of crystal formation from making blocks made up of a particle core plus a shell of DNA ligands attached into the particle area.

玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。

矿物成分：针铁矿、赤铁矿、金红石、磁铁矿、电气石、石榴石、云母、绿泥石等形成了包裹体水晶，如发晶、钛晶、绿幽灵等，发晶中则含有肉眼可见的似头发状的针状矿物的包裹体形成。含锰和铁者称紫水晶；含铁�?；呈金黄色或柠檬�?)称黄水晶；含锰和钛呈玫瑰色者称蔷薇石英，即粉水晶；烟色者称烟水晶；褐色者称茶晶；黑色透明者称为墨晶。