Grade A
As processed, as per laboratory analysis
67%-70% Sio2
TiO + Fe2o3 =2.7%
K2O + Na2o = 7.688%
Grade B/C
As processed, via toll smelter
(B) Metallurgical Grade = 99% - 99.7% Sio2
(C) Electronic Grade Silica = 99.7% Sio
99.6 - 99.9% low Fe203
Construction Sand Waste from silica processing
Silica Construction Sand various sizes 67%
Silica Meal from 67% Sio2
Grade D
Refined in house
Electronic Grade = 99.99% Sio2
99.9999%
