Feldspar IntroductionFeldspar an overview What is
The basic feldspar structure consists of a ring of four tetredral unit; Potassium and sodium feldspar have three silicon tetredral and one aluminium tetredron, while in calcium feldspar half of four tetredral unit are silicon based and another half are aluminiumbased. [1] The surface of feldspar is composed of positive and negative sites.