>>51202917CuSO4 is a reference to a "Fleur de Sel", which means Flower of Salt (meaning is can be a flower by appearance but salt in its core), which also matches with the pic related mon. Right part of the pic is a literal Copper Sulfate, which usually comes in the form of salts when dried. Additionally, CuSO4 will transition into H2SO4, which is Sulfuric Acid, when put under electrosis.