Aluminium - Bauxite, Kaolinite (a form of clay)
Iron - Haematite, Magnetite, Siderite, Iron pyrites
Copper - Copper pyrites, Malachite, Cuprite, Copper glanc
Zinc - Zinc blende or Sphalerite ZnS, Calamine, Zincite ZnO
DONT TOUCH PEN, ONLY MIND CALCULATIONS WITHIN 40 SECS. REGULAR SPEED TEST. QUALITY STUDY MATERIALS. DEDICATED FACULTIES. ASSURANCE FOR SUCCESS.