👉 The term "monomineralic" is a scientific term that refers to minerals with two elements in their formula. Monomineralic minerals are those that contain only one element and have no other elements present in their chemical formulas. For example, sodium chloride (NaCl) is a monomineralic mineral because it contains only sodium (Na) and chloride (Cl). Other examples of monomineralic minerals include potassium nitrate (KNO3), which has only potassium (K)