GEOLOGICAL ORE DEPOSITS.

1. Most common minerals found in oxidised zones

1.1. Iron

1.2. Nickel

1.3. Zinc

1.4. Silver

1.5. Manganese

1.6. Lead

1.7. Gangue minerals

1.8. Copper

2. Oxidised zones of ore deposits

2.1. Mixtures of iron oxides/hydroxides

2.2. Quartz

3. Most important factors which control a mineral deposit

3.1. Grade

3.2. Size of the deposit

3.3. Easy access to infrastructure such as roads and rail for transportation

3.4. Curent price for the commodity

3.5. Demand

4. Main types of geological ore deposits

4.1. Metallic deposits

4.2. Non-metallic deposits

4.3. Fossil fuel deposits

5. This has become more difficult with time as easily accessible ore deposits close to the Earth's surface have already been exploited by humans in the past

5.1. Earth

5.2. Human molding iron