The ancients called crystal " water jade ", prove that people have regarded the crystal as one kind of the malachite since ancient times. Call crystal spars on the craft . Looking from mineralogy, the crystal is the colourless transparent quartz crystal of a kind of crystallization.
Quartzy classification every area protect department different categorised method either the same because of request in it. The craft circle generally classifies according to the following several kinds of methods :
1.Classify by color:Smoky quartz dark dust very fee color, dark brown: It is purple to be purple and brilliant; The crystal is colourless; The yellow quartz is dark brown; The yellow quartz is yellow; The crystal of the rose is rose-colored; The milk quartz is milky white.
2.Classify according to the parcel body in the crystal: Parcel body whether crystal make solid and liquid material in crystalline lens at the crystallization, composition its often with solution with build brilliant hole composition of mineral have close relations. People think that the crystal with parcel body is the rare treasure and appreciate extraordinarily , it is jade carving high thing that put high-quality jade material of stunt their to good use. Utilize brilliant handicraft carved very catchy. Have liquid parcel crystal of body, call water gallbladder crystal, it looks at to be but treasure of crystal.
Crystal classify according to the color, parcel body, can classify by use form , form special one can make and appreciate Shi Gu, crystal brilliant clan belongs to this kind promptly.
Quartzy technological requirement clean, bright jade-like stone, have impurity, son on hole, color blue and green to it mixes to be quality most poor. By quality, color, flood peak, stature, parcel bodily form can want and distribute to quartzy quality characteristic,etc. discern and evaluates .