Vol. 7 Núm. 1 (2023): Pesquisa e Ensino em Ciências Exatas e da Natureza

The article entitled O conhecimento geológico do material mineral, uma contribuição para a Arqueologia: conceitos e características petrográficas addresses the geological raw material used in the early days of primitive man's life and aims to clarify the mineral nature, concepts and petrographic characteristics. The cover shows lithic artifacts made up of rocks, siliceous minerals and mineraloids with crystalline, microcrystalline, cryptocrystalline and amorphous structures with a cohesive nature, high hardness, great resistance to alteration and fracturing into chips, thus representing important elements for various applications. The cover also shows stone materials from early buildings and domestic objects made of clay and ceramics. Such stone and metal materials were indeed frequent and significant, and represent a potential opportunity to study the transformations experienced by primitive peoples.