we are the mining company, we have our own mining site in Jiangxi Province. We can supply both crude lumps and processed minerlal powder, the specification can be made according to buyer's requirement. please contact us for more details.

Standard Specification:

K2O: 10% min

Na2O: 2 % min

Fe2O3: 0.1% max

TiO2: 0.08% max

Al2O3: 17% min

SiO2: 65%

CaO: 0.5 max

potash feldspar