Chemical composition : SiO 2:44.30% Al2O3:0.03% H2O:13% CaO: 0.81% MgO: 43.70% Fe2O3:0.73% which also including a small amount of impurity, such as, Ca, Cr, etc.
Shape : Fine and smooth develop into body of dense lump, and minority are the fibrous one.
Color: White , yellow , green , bluish-green , blue and white , brown , brown and red , dark red , dark green , black , etc.
Physical performance : Hardness: 2. 5-4, proportion 2. 44-2. 62, gloss, semitransparent to opaque.
Producing form to divided:
New jade: Exploit from mine directly, have no epidermis . And at the stage when was just formed
Old jade: The ripe time of jade has been already complete, the texture is fine and smooth .
River-milling jade: The black stone being carrying to river vale and riverbed sand throughout over years.
Main producing area: China ( Liaoning , Yunnan ,etc. ) , New Zealand , U.S.A. , Mexico ,etc. Function : Remove the noxious substance of the powder of malachite, which remain 16 kinds of benefit microelement among natural malachite, make people assured to use the powder of malachite to carry on the medical treatment and health care, and also even more prevent and treat function on cancer , apoplexy and heart disease. Malachite products with natural beautiful quality, gloss graceful caring skin , and no radiation polluted. It is mainly used that Fields such as decoration materials , carving , ornament , plastic steel , cosmetics , papermaking , health product , coating , environmental protection , medical treatment , emulsion paint , synthetic material ,etc.