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Potential of Some Granites from Foumban (West Region of Cameroon) as Fluxing Materials for Ceramics

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Document pages: 11 pages

Abstract: This study focuses on the mineralogical, geochemicaland petrographic characterization of three granite rock samples (LTP, LTS andLTMB) from Foumban, West Region of Cameroon. Fusibility tests were carried outon the samples containing the highest amount of alkali to assess the potentialof these materials as fluxing admixture for ceramics. The results show that thegranite consists of alkaline feldspars, notably orthoclase and microcline ofperthitic micro-texture, plagioclases (in particular albite) and also maficminerals such as amphibole and pyroxene. The quantity of alkali in the samples is quite high (16.83 for LTS,17.08 for LTMB and 18.87 for LTP) compared to standard data. Fusibility testscarried out on the samples having the highest alkali content (LTMB and LTP)showed that the vitreous phase appears between 1050°C and 1100°C in these samples when theywere heated. The Fe2O3 and TiO2 content ofLTMB (3.01 and 1.49 respectively) ledto a brown colour of its fired product. Therefore, based on their composition,these materials can be used as feldspathic fluxes for the formulation ofceramic products.

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