Consider the following statements: 1. Copper, Lead, Tin and Bauxite are non-ferrous minerals. 2. Manganese, Iron, Cobalt and Mica are ferrous minerals. 3. Potash, Marble and Granite are non-metallic minerals. 4. Nickel, Cobalt and Platinum are precious metals. How many of the statements given above are correct?

• Copper, lead, tin, and bauxite are all classified as non-ferrous minerals. Non-ferrous minerals are those that do not contain iron (Fe) and are typically more resistant to corrosion and oxidation than ferrous minerals. Hence, statement 1 is correct.
• Manganese, iron, and cobalt are classified as ferrous minerals because they contain iron (Fe) or have properties closely associated with iron. However, mica is not ferrous mineral; it is a non-ferrous mineral. Hence, statement 2 is incorrect.
• Potash, marble, and granite are all classified as non-metallic minerals. Unlike metallic minerals, which contain metal elements, non-metallic minerals do not yield metals and are often used for industrial, construction, or agricultural purposes. Hence, statement 3 is correct.
• Nickel is considered a base metal, not a precious metal. It is widely used in alloys and as a component in stainless steel.Nickel is known for its corrosion resistance and is used to enhance the durability of various alloys.
• Cobalt is also classified as a base metal rather than a precious metal. It is used primarily in high-performance alloys and battery technologies.
• Platinum is classified as a precious metal. It is valued for its rarity, durability, and unique properties.
• Hence, statement 4 is incorrect.

Additional information

Classification of minerals

1. Metallic
2. Non-Metallic
3. Energy Minerals

Metallic

• Ferrous (containing iron): e.g. iron ore, Manganese, nickel, cobalt, etc.
• Non-Ferrous: e.g. copper, lead, tin, bauxite, etc.
• Precious: e.g. gold, silver, platinum, etc.

Non-Metallic

• e.g. mica, salt, potash, sulphur, granite, limestone, marble, sandstone, etc.

Energy Minerals

• Coal
• Petroleum
• Natural gas