TMM India provide grits size as per clients required. We have all types of quartz grades available for immediate supply from Glossy quartz to semi grade of quartz lumps. Other specifications of quartzite. Alumina (Al2O3) 1 to 1.5%. Soda (Na2O) & Potash (Kro) Less then 1%. Lime (CaO) Less then 0.5%. Magnesia (MgO) Less then 0.5%. Mohs hardness:7-7.8