Abstract-The objective of this study is to measure the purification and characterization of the quality of quartz sand from Pasir Putih village, South Pamona district. The purification was done to increase the pureness of the silica by soaking the sample with HCl 2M then was titrated using aqueous to reach the pH of 7 (neutral). The sample was characterized using the XRF and XRD. Moreover, the element content of SiO2 (Silica) after the purification based on the results of the analysis was 99,88%. Therefore, the element can be used as the raw material for solar cell. Matching the result of the XRD analysis with the software Search Match shows that the purification of the sample SiO2 contains the crystal trigonal system (Hexagonal axes) with the orientation field.

Study of igneous rocks derived from Ogowele Village and Village Toli-Toli Bajugan has been conducted to determine the magnetic minerals contained in the igneous rocks, as well as determine the crystal system, lattice constants and field diffraction by comparison sieve 60 mesh and 80 mesh. Process characterization and analysis using X-Ray Diffraction (XRD). Characterization and analysis of the results showed that the compound was detected both rock samples Fe3O4, SiO2, Al2O3 and MnO2. Igneous rocks derived from Ogowele village is dominated by compounds SiO2 (quartz) by 52% and rocks from Bajugan village dominated by the compound Fe3O4 (magnetite) by 40%. The crystal structure is cubic and hexagonal compound to compound Fe3O4 SiO2. Fe3O4compound cubic lattice constants are a = b = c is 8.375 Å. To compound the hexagonal SiO2 ie a = b of 4.898 Å and c of 5.385 Å. Field diffraction on Fe3O4compound is (3 1 1) and the SiO2 compound that is (1 0 1).