Feldspar : S.V.Minerals : Dahod
Feldspar powder can bedefined in two ways: (1) Potas (2) Soda. It can be varied in 3 Grades: (A) Feldspar 3rd Powder (katti), body grade material which has no merge chemical in it and is used in flour tiles. (B) Feldspar 3rd powder (super katti) is a body grade material which has nearly 7% alk and I value of 45+ and is used in double charge tiles.