Fierce appearance stone

The fierce appearance stone is the cat's eye stone, the tiger eye stone, the opal, also said that “the cat eye”, one kind of noncrystal silica, includes the obvious color deterioration iridescence, the stone has the natural wooden village hachure, also looks like the cat branch animal like cat, tiger's eye to acquire fame very much, often is used for to treat as the gem,Ocean Agate Beads Chang Daike obtains Buddha's blessing. the fierce appearance stone was one kind retained the asbestos fibrous structure quartz aggregate, its color and the texture and the trees were very similar therefore acquire fame. In world biggest fierce appearance quarry bed in the South African Delanshiwa province, in addition, but also has Brazilian, Chinese Henan's places such as Sichwan to produce. The fierce appearance stone's color usually has brown, the tan, the blue color and the sky grey, it is the ferroguinous precipitation which separates out by the asbestos in the fibrous quartz grain hole intermediate formation, tiny fibrous very obvious. The fierce appearance stone's quality of material is exquisite, has the strong silk silk gloss, generally is translucent. Its degree of hardness is quite high, can achieve 6.5, moreover toughness is good. The fierce appearance stone's principal variety has the crocidoite and the hawk eyeball stone, the tan petrified wood said that the tiger the clear stone, the blue color petrified wood calls the hawk the eyeball stone. In fierce appearance Shi Shu low-grade gem raw material, generally uses for to manufacture the necklace or to carve the accessories. The quality of material is whether exquisite,Onyx beads the color is whether elegantly simple, as well as the block body size is judges its quality the key. If the quality of material is exquisite, is not empty, does not have the impurity, the weight above 10 kilograms namely for first-level.