noun🔗ShareCaolinitaA common hydrous aluminosilicate mineral found in sediments, soils and sedimentary rocks, Al2Si2O5(OH)4; one of the kaolin group of minerals."The white, powdery clay used to make some types of porcelain is primarily kaolinite. "La arcilla blanca y pulverulenta utilizada para fabricar algunos tipos de porcelana es principalmente caolinita.geologymineralmaterialsubstancechemistryChat with AIVocabulary GamePractice Reading