Análise de gemas e minerais por meio do Polariscópio Gomes

Abstract

This project approach the eficience of the newly invented machine named Gomes Polariscope (Constructive induced disposition in polariscope for study and gemstones analysis) which enables the observator to view the interference image of mineral gemstones. Created in 2016, it allows to classify the gems in uniaxial or biaxal (positive or negative), what guarantee a time’s gain in the analysis of gemological materials, besides making the gemological description more fast, efficient and safe. For the realization of this project work was analyzed 141 gems of the Federal University Of Ceará’s Gemology Laboratory, which has been previously identified and cataloged using the classic gemological description, which served to avalue the interference image generated by the machine and check the facility to view it in differents gemologicals specimens; also was used 26 samples with gemological potential from Quixeramobim pegmatite District for being used in Gomes Polariscope. The geology of the Municipality of Quixeramobim comprises supra crustal rocks of the neoproterozoic (Complexo Ceará / Indepedência) cut by a set of granite rocks of the neoproteroizo and superior, besides numerous granites and pegmatitic bodies. That was selected samples from that region because of it’s gemological potential, for a future catalogation of the ease degree to view the mineral gems’s image of interference using the Gomes Polariscope, also looking for possible pecularities in the gems.