Crystal is a colorless and transparent quartz crystal minerals. The main chemical of it is silicon dioxide with the ordinary sand and is a kind of material with out of the womb . When the time is perfect crystalline silica crystal; silica gel after dehydration is agate; solidification colloidal silica water; silica grain is less than a few microns, on the formation of chalcedony, chert, secondary quartzite. Crystal crystal crystal perfect is the six party system, often with a six prism, cylinder head for a tip or two points, a plurality of column connections in a block, known as crystal family, beautiful and spectacular like crystal awards,crystal trophy,glass awards,glass trophy. Crystalline silica is not complete, the shape is in different poses and with different expressions. When you go to the Museum of Hainan crystal to see, can eye-opening: in addition to the common long column, and like a sword shaped, if some plate, such as short column, some like a double cone. Some as small as a finger, some as big as a boulder; some less than half, some weighing more than and 300 kg. First artificial crystal just to be promotional gifts is a high transmittance of glass, glass can be divided into many types. Natural crystal from the original mineral, and the formation of the principle of jade. Artificial crystal used for crystal crafts crystal gifts, decorative effect is very good. Artificial crystal and natural crystal chemical composition are silica, high purity silica, known as the “crystal””. Natural crystal is a quartz crystal transparent, with six columnar crystals, its hardness is very high, reflecting strong sunshine. The pure crystal is a colorless transparent crystal, and no impurities of natural crystal almost can not find, most natural crystal contains bubbles, impurities, crystal mixed. Artificial crystal quartz sand raw material is refined through a series of processes, and then by fine cutting technology and flawless Polish Kung Fu made of crystal, pure and transparent, to make up for the lack of natural crystal. Artificial crystal added into the metal elements such as lead can enhance the light of the demolition, but also show the noble crystal. Due to the complex process, the process is superb, and some even more expensive than natural crystal. The ultraviolet rays can be made of artificial crystal and natural crystal, and ordinary glass can not. Artificial crystal according to its raw materials are divided into two kinds: one is lead artificial crystal, mainly white crystal glass, it has better refractive index, high hardness, as well as a larger proportion. The other is potassium artificial crystal, also called lead free artificial crystal. It is characterized by no retained metallic glass brightness, refraction and metal sound and general glass, and has the advantages of artificial crystal containing lead.
