Geochemical Studies and Industrial Features of Talcose Rock in Alla Area, North - central Nigeria

Obaro R. I. , Agbalajobi S. A. , Odediran, O.A. , Hammed, A. , and Obaro, N. T.

Department of Minerals and Petroleum Resources Engineering Technology. Kwara State Polytechnic, Ilorin
Department of Geology and Mineral Sciences, University of Ilorin Nigeria

Keywords: Talcose, composition, mineral, chemical, industries

Abstract

Talc bearing rocks has been identiied in several location in Nigeria and it is used in industries with little emphasize on its industrial applications. Three talc bodies have been identiied in the Alla area within the Schist belt of North-Central, Nigeria. Two talc bodies were examined through X-ray diffraction, while three talc bodies were assessedfor X-ray luorescence to ascertain their suitability for industrial applications. The results of X - ray diffraction studies of the talc bodies further revealed the presence of substantial talc, chlorite, quartz, anthophyllite, hornblende, and dolomite with strong peaks and percentage weight composition. The chemical analysis from X - ray luorescence of the talc bodies suggests that the SiO (mean of 2 57.10%) with of enrichment in the talc bodies is a result of chemical weathering while the magnesium content suggests hydrothermal alteration accompanied by serpentization of the tholeiiticprotoliths which is comparable to similar talc bodies within the schist belts of South - western Nigeria. These are very signiicant in determining its end use for industrial purposes. However, the SiO of all the samples in the study area based on standard speciication can be 2 used for ceramics/refractories, while the Al O (mean of 2.24%) contents can be useful in 2 3 paints, electrical insulators, and ceramics/refractories. The magnetite contents (MgO) of talc bodies can be used as fertilizers and can also be useful in paper, textile illers, and pharmaceutical industries.