Chemical composition: SiO2:44.30%, Al2O3:0.03%, H2O:13%, CaO: 0.81%, MgO: 43.70%, Fe2O3: 0.73%, with little impurities, such as Ca, Cr and so on.
Shape: exquisite and dense aggregate, a few of them are fibrous aggregate.
Color: white, yellow, green, aquamarine blue, blue and white, brown, brown red, dull red, dark green, black and so on.
Physical property: hardness: 2.5-4, proportion: 2.44-2.62, oily luster, translucent to opaque.
New jade: exploited from the mine directly, no epidermis, in its forming stage.
Old jade: jade is developed perfect, exquisite and dense.
River milling jade: carried by river water to the valley and river bed all the year round.
Main producing areas: Liaoning, Yunnan in China, New Zealand, USA, Mexico and so on.
Jade contains multiple trace elements beneficial to human body, such as zinc, copper, iron, manganese, magnesium, cobalt, selenium, chrome, nickel, lithium, calcium, potassium, sodium, tin, titanium and so on. the trace elements containing in the jade absorbed by human body can balance the disorder of Yin and Yang, qi and blood, ward off diseases and keep healthy. In the pharmacology, long-term exposure to jade can supplement the lack of elements and trace elements in human body and absorb and excrete surplus elements and trace elements, thus can make people keep healthy.
With natural colors, anti-corrosion and weather-resistance, various jade plates can be widely used in: public building, villa, garden architecture, road pavement, garden art, garden landscape, wall decoration, bathroom decoration, commercial building, exhibition hall, footpath in garden and park, floor, sauna, hotel and other construction. It is noble and top-grade.