Which of the following is a non-metallic mineral? 

The correct answer is Asbestos.

Key Points

• Asbestos is a naturally occurring mineral that is classified as a non-metallic mineral.
• It is composed of silicate compounds and is known for its heat resistance, insulating properties, and durability.
• Unlike metallic minerals, asbestos does not have metallic luster or conductivity.
• It is widely used in industries for applications such as insulation, roofing, and fireproofing materials.
• The other options like Bauxite, Hematite, and Magnetite are metallic minerals, while Asbestos falls under the category of non-metallic minerals.

Additional Information

• Non-Metallic Minerals:
  • Non-metallic minerals are those that do not contain metals in their composition.
  • Examples include mica, limestone, gypsum, and quartz.
  • These minerals are primarily used in industries such as construction, ceramics, and electronics.
• Asbestos Usage Concerns:
  • Despite its industrial utility, asbestos is associated with serious health hazards, including lung diseases such as asbestosis and mesothelioma.
  • Many countries have banned or restricted its use due to health risks.
• Metallic Minerals:
  • Metallic minerals contain metal elements and have properties like conductivity and metallic luster.
  • Common examples include iron ore (Hematite, Magnetite), copper ore, and bauxite (aluminum ore).
• Bauxite:
  • Bauxite is the primary ore of aluminum and is classified as a metallic mineral.
  • It contains aluminum oxide compounds and is a key resource for aluminum production.