Defect chemistry is the study of level defects in imperfect crystals. These include vacancies, interstitial atoms or ions, trace features, electrons, or holes or almost every other deviation from the construction of a perfect crystal. Even Totally pure crystals incorporate position defects at any temperature above complete zero. Therapy: Nearly https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share