noun🔗ShareZoïsiteA mineral with orthorhombic crystals, Ca2Al3(SiO4)(Si2O7)O(OH)."The geology student carefully examined the zoisite crystal, noting its unique orthorhombic shape. "L'étudiant en géologie a examiné attentivement le cristal de zoïsite, notant sa forme orthorhombique unique.mineralgeologymaterialchemistryChat with AIVocabulary GamePractice Reading