The Guiyang stone is another kind of product in the functionality environmental protection mineral, also is mineral crystalline, which has two kind of color,white and red. The emission of anion is the best in minerals, others are tourmaline, Qibing stone, Maifan stone and so on. At the same time, also has the stronger anion, far infrared ray radioactivity strong.
Chemical composition :
SiO2: 66-77% Al2O3: 12-19% Fe2O3: 0.1-0.7%
TiO2: 0.02-0.03% CaO: 0.18-0.4% MgO: 0.06-0.11%
K2O: 4-6.5% Na2O3: 3.5-6.5%
Lg,: 0.2-0.43% other: 8.5-13% above
It is extensive mainly used in dope , paint, cosmetics , health care , daily-use chemical industry , environmental protection, construction material , medical treatment , handicraft , plastic, etc,.