I was very fascinated to observe the crystals of potassium permanganate under foldscope. Potassium permanganate is an inorganic chemical compound and medication. As a medication it is used for cleaning wounds and dermatitis. It has the chemical formula KMnO4 and it is a strong oxidizing agent. It dissolves in water to give intensely pink or purple solutions. This is how crystals of potassium permanaganate looks under a foldscope.