The ores of Iron are :

• Hematite (\(\rm Fe_{2}O_{3}\))
• Iron pyrite (\(\rm FeS_{2}\))
• Magnetite (\(\rm Fe_{3}O_{4}\))
• Siderite (\(\rm FeCO_{3}\))

The ores of Copper are:

• Copper glance (\(\rm Cu_{2}S\))
• Copper pyrite (\(\rm CuFeS_{2}\))
• Malachite (\(\rm 2CuCO_{3}Cu(OH)_{2}\))
• Cuprite (\(\rm Cu_{2}O\))

The ores of aluminum are:

• Bauxite (\(\rm Al_{2}O_{3}2H_{2}O\)) 
• Corundum (\(\rm Al_{2}O_{3}\))
• Kryolite (\(\rm Na_{3}AlF_{6}\))

The ores of silver are:

• Argentite (\(\rm Ag_{2}S\))
• Horn silver (\(\rm AgCl\))
• Pyrargyrite (\(\rm AgSbS_{2}\))