Geography of Pakistan · Natural resources. The idea in plain words, the rules to remember, the mistake to avoid and a worked example, written and checked by Mega Lecture.
Minerals are divided into two groups. Metallic minerals contain a metal, for example iron ore, chromite and copper. Non-metallic minerals do not, for example limestone, gypsum and rock salt. Pakistan has large amounts of the non-metallic ones, and they supply the cement and chemical industries.
Many metallic deposits are in remote parts of Balochistan with poor roads, little water and little power, so they are costly to develop. Some ore is low grade, so Pakistan imports iron ore and other minerals.
Minerals are non-renewable. Reserves run out, and mining leaves dust, noise, scarred land and polluted water, so careful use, recycling and restoring the land all matter.
Limestone, gypsum and rock salt are non-metallic minerals. Students often list them as metallic because they are mined like ores.
Answer: 30 years at the present rate; 15 years if the rate doubles.
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