... 0-8mm, 20-100mm, 60mesh, 120mesh,200, 325mesh Potash Feldspar lump Potassium feldspar is silicate mineral with rich potassium, characterizes low melting ... , milling tools and materials,welding rod etc DETAILS OF POTASH FELDSPAR:Commodity:Potassium rich FeldsparSpec/analysis; Form: Lump, grains or ... 6Hardness66TypeOrthoclaseAlbiteColorWhite,Pink,MilkyWhite,Blue,Gray,No-colour E0712, Potash Feldspar lump