Metals from Minerals - C5

(notes from the CGP revision guides)

• Ores contain enough metal to make extraction worthwhile.
• Rocks are made of minerals. Minerals are just solid elements and compounds.
• Metal ores are rocks that contain varying amounts of minerals from which metals can be extracted.
• In many cases the ore is an oxide of the metal.
• For some metals, large amounts of ore need to be mined just to obtain small percentages of valuable minerals.
• …