Thalia quality of material exquisite pliable but hard to break solid, may use for to carve the handicraft or to mount the jewelry, but may also be used as medicine.

The norina is the massive calcareous stacks which secretes in the sea one kind of preliminary coelenterate sybila polyp becomes by the growth, assumes the dendritic, the mick section has the concentric layered pattern. The Qing Dynasty, one, two official's bow is makes with the red coral. The marcelia mainly has red, white, green, purple and so on colors, take the color pure red marty as the high-grade goods. Does not bear the acid and alkali.

In Asia, the lian main habitat in Japan to a Taiwan sea area, Hainan Island and the Xisha Islands also has produces. Alysia Jewelry Dari jewelry is becoming a fashion and more people begin to love fiorenze pearl jewelry,which including kizzee necklace,coral bracelets,coral earrings,coral rings and so on.

Its chemical composition is the calcium carbonate, mainly appears by the calcite form, degree of hardness is 3.5-4, the proportion is 2.60-2.70.