Characterization and utilization potential of basalt rock from East-Lampung district

Mineral Processing and Technology International Conference 2017

Isnugroho, K.^1 ; Hendronursito, Y.^1 ; Birawidha, D.C.^1

Research Unit for Mineral Processing, Indonesian Institute of Sciences, Jl. Ir. Sutami Km. 15, Tanjung Bintang, Lampung Selatan, Indonesia^1

关键词: Analysis of chemical composition;    Chemical compositions;    Intergranular;    Mineral composition;    Polarization microscopes;    Rectangular shapes;    Stone wool fibers;    Uniform distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/285/1/012014/pdf
DOI  :  10.1088/1757-899X/285/1/012014

来源: IOP

【 摘 要 】

The aim of this research was to study the petrography and chemical properties of basalt rock from East Lampung district, Lampung province. Petrography analysis was performed using a polarization microscope, and analysis of chemical composition using X-RF method. From the analysis of basalt rock samples, the mineral composition consists of pyroxene, plagioclase, olivine, and opaque minerals. Basic mass of basalt rock samples is, composed of plagioclase and pyroxene with subhedral-anhedral shape, forming intergranular texture, and uniform distribution. Mineral plagioclase is colorless and blade shape, transformed into opaque minerals with a size of 2; 10.10-20.93 Fe2O3; 11.77-14.32 Al2O3; 5.57-14.75 CaO; 5.37-9.15 MgO; 1.40-3.34 Na2O. From the calculation, obtained the value of acidity ratio (Ma) = 3.81. With these values, indicate that the basalt rock from East Lampung district has the potential to be utilized as stone wool fiber.