Potash Feldspar.
Sodium feldspar.
Soda feldspar, potash feldspar, glaze feldspar.
Na2o soda feldspar.
Sodium feldspar and potassium feldspar.
Soda feldspar, potash feldspar.
Talc lumps and powder processed talc quartz lumps magnesite dead burnt magnesite(dbm) calcium carbonate feldspar .